SUMMARY COVERSHEET Tntroduction of the Conputer in the Statistics Subnitted to the office of ConDutinq Activities Title: ProsT'am ') ] f6r Dew.l^nird a^m.,'F-; l!.^. Nane of lnstitution HoDe Coll,eee Address: State City Holland Grant to: Curriculunr Under the Zip Code qg423 Michigan Hope Collese be made) 3. Clarence Handlogten, Treasurer-and Business Manaser (Nane ano taile or Elliot A. Tanis Directora's na&e Telephone: $!ea 5. 616 cnle! admlnlsl-rat.Lve urrace Period covered in this No. TotaL amount requested anst-tution) Mathernatics Depar-tnent 392-5111 296-8384 ljeDt. No. Home Phone proDosal: June, 197L to Ausust. 1973 brarllng 7. of 481-34-8023 Socaal Security No. Ext.2266 uooe otticer fron the National oate Enqt_ng t ate Sc i e n c e a. /fo--,,) Clarence Handlogten, Treasqrer t Business Mana liame and ri!:e of or-iiciai--EItEoFf2EE--Eer to sign for institution PRoP0SAL: lNTRoDUCTI0NOT THE COI4PUTER ]N THE STATISTICS CURR]CULUM Elliot A. Tanis Herbelt L. Dershen Hope College Holland, Michigan S e p t e n b e r 1 , 1 9 70 , The modenn digital of statistics to undergraduates. courses introduced of statistics along five l-. conputer has greatly enhanced the teaching Many studies have been nade and which use the conputer as a tool (see references). Tbese efforts in the teaching have been diuected general" lines. Gener.ating empirical data, would spend nany hours throwing Whereas previously dice, the cornputet" can pr.ovide a much larger flipping students coins or drawing cards, volume of data in a matter of geconds. statisticaL that were only illustrated DrinciDles. by textbobk 3. perforn of the pninciple ance or regression bers and receive interpreting 4, this The use of special stati6ticaL analysis) the purpose subr.outines to procedure (such as analysis gives the student an analysis of va:ri- a chance to input f!,on which he may gain experience num- in results. Stoning raw data. amount of naw data collected lray that data and then testing under study. Stot?ed p!'ograms. a conplicated pr.inciples examples can now be "discove!.edtl by the student by gener"ating the enpi.rical validity Statistical students The conputer can be used to 6tore ft orn real and instructors life observations can perforn statistical a lar"ge in such a analyses of data. 5. Conputer-assisted instiuction. A systen which al1ows for - 2 - interaction alfowing bet\"reen the student and the computeu can be utilized the machine to tr-rtor the student, step through the piocess of learning i.e., to take him step by the statistical_ Epending as nuch time at each step as the student principles, needs, Each of these uses of the conputer in the stati.stics great nerit lrhen enployed in the proper situation. has examine the effect curriculun of introducing the conputer into however, that we wish to ou1. statistics the computer can senve as a more vaLuable tooL when the student must do a Significant hfurse1f. If a student anount of the prograrming is able to progran the correct he inust have a nore than superfj.cial- the pnoblen is ations culriculun at Hope College in the above ways. We feel, problen, by that soLved. night This proposal He must take into be encounter.ed and all is nade with i.nto the statistics sofution understanding of a of how account al"l possible possible situ_ aets of input the purpose of incorponating this data, idea cur.riculum at Hope College. DESCRIPTIONOF PROPOSED COURSES The Hope College Mathenatics course sequences in statistics: depantment currently Math 35, Introductory and l,lath 55-56 Mathenatical" probability to nodify naterial in an integnal rationale A+ &atics these courses by introducing fol-low for l-ha nnac6h+ way. offers tr^ro Statistics and Statistic6. and !.te propose the conputer into Our nethod fon doing this the course and the the two Eequences considered separ.ate1y. +L!!Lc im6 rLrler.e l alte t$ro corlt ses offered department at Hope College which are either r.ecomnendedfon najor:s in the fields business adninistration, sociology courses are Mathematics 27, Introduction the nathe_ requined or strongl-y of psychology, aDd political by econonics and science. to Digital These two Computens and - 3 1. Mathe$atics ter 35, Introductory - hour coutse in which on the fBM U30 while giving a generaf introduction could berefit fron cal analysis. By learning behind their ove!' the present without fron their" lelated najon could under,_ and gain practice eltrlangenent whene progr.amning nust For exanples currentl-y statisti_ the statiE- This would be a signifieant to Po?tran. to statistics with the students background for each ax.e motivated ar.ea which nequine the prognans they wlite results. that a.two_ Computen pro_ when the students irnpnovebe taught the atudent progr?ans assigned ar,e usuaLLy nothing to be translated is feft of the other. theee problens, assuuing any statistieal statisticaL It pnogramrning in conjunction analyzing the analysis in i.ntenp:reting nent The catar-og descr:iption these t!.ro one-semester courses into more readiLy probleo.s necessary for _ houll course senester to statistics. the xoateriaL by interesting stand is a three se(Luence, tlDaee hours each se;ester. gnanning.can be taught tics leax"n to prognam in Fortran found in Appendix A. I{e pnopose to con}ine course The formetr is a two senes_ the students the latter of these two courses is senester Statistics. and hence none than fonnulas of the types assigned in the llath of prograna 2Z courise, see Appendix B. The above could statiEtics that this a p?erequisite an argunent their be presented combination for thei? iatical. as an optimal But we also believa approactr can also soLution. elenentary be given leaving We agai.n emphasize that f!'om most cunrently established computer- courses inas!0uch as we would have students writing own prognams rather routines. the prograruning. the opposite course would differ aided statistics for as an angument fon naking than depending (We do not, on previously prepared however, !ul-e out the use of such stat- - 4 1: routines in this course where we feel eornputen can be an effective thoroughly Perforn understand it. pedagogical tool a technique This fact they would be useful). befole he can i,mitd cou.se6' in such a way that statistics. but would invorve the student the latest previously will require will necessani.ly be taught of the naterial enough pl"ogramming learned can be illustnated tearned statistics. a Large amount of planning. na1 practiee. early an intenveaving of the technique and knows enough stati.tics plograrnjning principle examples invoLving a combinatj.on a1way6 has leanned to pnogr"en the next statistical that a progtram to in nurnerical analysis, The proposed cout?se would not be simply two present since the student nust has been long utilized but 6e1dom in connection with The by This obviousfy The prograrming in a sequence which differ.s Por exarpLe, subscr.ipted variablee nateriaL fton the no!,_ !qil1 be intnoduced in the course nathen than towand the end as is u6ua1 6ince nost €tatietical roing eoncepts will applications require their Length and the pnesent cour"ses totaL of additional with which social lrhich Seldon used progran_ be placed nean the end of the course, Since the pnoposed cour.se is a total introduction use. topics and behavional are not included scientists semester_hours i.n there will in statistics in the current are randon number generators, f,ive, of six be tine beginning with should be famiLiar cunricuLum. Monte Carlo techniques ordera to drarv certain divided into and nefining conclusions tedns of students this and simulation. with sinilar This grouLd experiment or data statistically florn the data. and Sone. such topics raw data firord a vrell-defined obsenvation, and analyzing the and computer science The students would also be expected to complete a ploject. involve for The class interests in would be and each team - 5 .,: would attack a problem related The effectiveness the quality obtait various depaltnents resealch classroon these with articles tg obtain depend. substantially these projects on as welr exampl_esand homework assiqDnents. fi:orn thei! a collection the class the assistance in their A useful in his course wifl l We wilt that of this of the problems and data used for as pnobleng used for lems. to their" field. own !"esearch arld fron areas of inierest. of interesting, side effect analyeis of our colleagues useful fon the professor night provide in the te)<tbooks a4d In this way we hope and non_ttrivial, pnoviding €one additional prob_ the problen i.nsight is fon him own wonk . MATHEMAT ICAI. PROBABILITY AND STATISTICS We teach a two semesten, three Level mathematical For this course we believe the theory of probability We fulther This can often Howeve!, probabiLity believe and 6tati6tics it is inpo:rtant and Etatistical that be done vely it is Einply iunion_senion courise (eee Appendix A), fon the studenta the Central impontant to illustrate with Limit sdnple from sever"aL distributionS, way the student gets dice, the theory, carde on a spinnen. Theoren, it is using different sone feeLing to ]eann infer"ence. fon many exampLes the eonputer" i.s an invaluabfe To iLlustr.ate this houns pen sene8ter, for the fact aid. j.nstructive sarple sizes. to In that o/^ln has a l-inj.ting this N(0,1) distribution. an example of i d e aFor Monte Ca?lo techniques ben generator ing See Appendix C for is necessaly. trandom numbers tt, it is and sirulation, a pseudo-nandom num_ Given a deterninistic an inst!,uctive exercise nethod for generatfor. students to - 6 - test statistical find the probability generate properties density functions E.g., we can of ordeu statistics. Now 8000 sets of 4 lrandon numbers.. Order each set of 4 nunbers. Do the 8000 snalLest bution of the numbers gener,ated. numbers represent of the snallest a random sanpfe from the distri_ o?der statistic? See Appendix C for an expan_ sion of these ideas, Confidence intervals e. g. , . 9 0? confidence If intenvals . Xr, Xr, ---, distribution, fon rneans can be simulated See Appendix C , is a random sample of size n fnom a normal X_ mean p, variance o2, tnenr!, - pf /a2 has a chi_square $i y = n degrees of fr.eedon wnile-!- distribution nith a chi-equare distribution to ill-ustrate. with y = n-l (Xi _ X)r/o2 degrees of fr.eedon. of one degnee of freedorn can be illustrated has This loss thr.ough siruLation on the compute!", fn order fon sinulation Lustnate the theory, it on the conputer to nost effectivefy would be beneficial for each student no6t of his own pnogra.rns. This woufd necessitate a prer"equisite available, part fon thi.s course. e.g. for ordering data or grouping data. statistics should be written the rnost benefit The fact fron that this this the theory by the student to write naking prograrnrning Selected subroutines of the program which iffustrates il_ should be made However, that in probabifity in orden that and he der.ive experience. procedure is effective by 5 Hope College- students who did wnite their has been denonstrated own prograrns for undet _ graduate research proj ects, In order that there would be sufficient of the necessary material, each semester. we desire It is coLfse tine to cover all we propose to add a t$ro hour laboratoriy in developing naterials the support of NSF. for. this laboratory that -'l - sets Inadditiontoillust]ratingtheory'wewouldliketogatherdata of live data in the san\e v/ay as ProPosed for the introd'jctory course. statistics It will the ti'io to ap- can learn way students In this cfasses to sharle the sa,ne data. situations' infenence in real-life p1y statistical in many cases for be Possible IN STATISTICS PREVIOUSEXPERIENCLWITH COMPUTERS into Much Previous work has been done in introducing the conputer curriculurn he!'e at Hope' Dr' 'tay E' Polkert was a the statistics . Dr. lolkert and statistics. putels conputet mainly fustrate of Nolth Carolina in the University participant exPerimented with in the fonn of Previously the theory NSI project in the intx'oductory on con- the use of the to i1- PrePared subroutines cour"se' statistics D!' Het'bert Det"shendidtheProgralmingandProvidedconsultationfor.thisProject' Drr.EltiotTanishasusedthecornputerextensivelyinhisnathe. counse and in undergraduate reand statistics natical- probability It is flon this exper(8ee APPendix D)' search projects in statistics and D:r' Tanis and the conience, the reco[uiendations of Dr' Io]'kert nents of their students the proposed revisions that to ouL statistics arise. curriculum PROPOSAL We ProPose to acconplish riculun ing fron the modifications cur- to the statistics peLiod stretchPhase Program over a This period includes the Surrmenof l9?1 to the Sunner of 1s73' at HoPe col-lege in a flve twoacadenicyea'san.lwillthefeforeaffordtheoPportunitytoteach both course sequences twice ' Phase I of the Project this . period will of 1971' occur in the Surnrner" Dr. Tanis and Dr. Dershen slil1 nake Preparations courses to be taught the following academic yeai' This nill During for the involve - 8 - the planning and arnnanging of natenial introductory statistic_s neaningful of useful certain routine€. all .dents, sequence for and pr.ognaruning couz,se, the development expe:riments and useful plloblens in a logical neal_life and e)<amples for data sets, the cqlputer, The two pr.ofessons lrill be tnained of the design and the vEiting be assisted by fou, of whorni,riltr have taken one yeall of mathematical These students will the to be lab agsistanb of stu_ statistics. the folfowins acadenic yean. The second phase will eonsist first of the teaching tinre, of the tto and Etatistice throughout that Du. Tanis wi1l counse. the year. is anticipated it wilL posed courae lequirenents. pnevious summenwill include Each wilL Students will statistj.cs teach the nathematical consul-t with assiBt with be no textbooks The four and p!"oba_ the laboriatory. It notes in each which folLow ouu p!.o_ students who were j.nvolved the now serve as laboz,atory assistants. assistance the the other be necessary to dietribute of these counses as there will duti.es will pr"opased course sequences for Dr', Dershen vrilL teach the introductory prograruning course while bility span the 1971_22 acadenic yeat and will in the preparation their of notes, naintaining softwane developed in the pnevioue sun]Ilter, devefop new softwar"e as .the need arises, aasist the conputer. for the students. fot students Drs, Dershem and Tanis for in pnograrn debugging and operate One quarter the prepalation In the Suruler of 1972, phase III will involve for of notes. of the project the developnent of new software, expeniments and the holding nelease time is p:roposed of a conference. the designing deseription nDissemination of this of Infornation'r. in this This of new This conference wilL educators .from the Midwest who ane intenested detailed is planned. program, be A conference is found in the section Tr,rostudents who conpleted the :naihe_ - 9 - matical probability year will and statistics sequence in the 1971_72 acadenic be employed as assistants Phase IV wi1l include for phase III. the acadenic yea? !g,12_j3 and consist the second teaching of both of the new courses. be tr"ied, o1d ineffective pt'ojects replacing and experinents rvilr be attenpted. ployed to assist px,obabifity Nevr approaches will approaches and neii, exampl-es, to the notes ppepared a year befor.e. the new mathematical of Revisions r!'i11 be nade Foun students who have completed and statistics as in the previous year,, sequence will be em_ Two of these students will have assisted in phase IIf. The Sunner of f973 witf entire be the fifth progt?d,ora'ill be evaluated years. Those experinents to all other interested phase the and recomnendations nade for \"ii11 be accunulated future ancl our final con_ and prepared for nho attended the conference in phase III and anv educators - . DISSEMINATIONOF INFORMATION In the sunler the results inpnovenent. of f972 a conference eril1 be scheduled to report of our first Invited of the nathenatics yeat of study and to solicit to this departnents confe!,ence will of alf at this confenence to approxinately is after fifty for nembers in the Mid_ the attendance panticipants. The confenence adequate preparation and so that t h e c o m p f e t i o n o f m o s t s u n r n e rs e s s i o n s . The confefence irill begin on Monday with folLorved by rnorning and afternoon and a final be interested We r^ri1l limit i.'i11 be scheduled in August to allow suggestions foun year colleges west area who have conputer. facilities. it In this judged the nost effective cLu6ions r.egarding the pnoject distribution phase. an afternoon session, sessions Tuesday through Thursday session on Friday norning, A1l sessions ,rill be chaired by Dl'. Tanis or Dr. Dershen. lines of the coulses to the palticipants as they stand at this tine problens wi]] and out_ be distributed . The foflor',ing and sent to alt Copies of interesting suruner' an update of these nateriars participants of the confelence will be made and to anyone else v,ho has requestea LoTiaaea to our ma-iljng list, PIRSONNEL The pr.incipal Dershem. Dr. Tanis will nathematical direct personnel will be Dr,. Elliot Tanis and Dr. Herber:t irave the pnir[ary responsibilaty probability and statistics cou.se while A resuEe of these tiro pnofessors Dr. Jay Folkent, Hope College, will in introductory course at Hope College . facitity conplenent of supporting calcufator center currently on compurers the introductor"y the computer for is the IBM 1130. equipnent complete with computations available, 0f the six able for of North Canolina pnoject statisti.cs one year. FACILITIES The principal snalle! at was a partici_ and taught using of mathenatics Dr. polkert senve as a consultant. statistics and progranuning is found in Appendix E. chairman of the departnent pant in the NSF - University the Dr. Dershem lrill the developrnent of the introdu qtory statistics course. for easily, for Hope Coltege has a fult the 1130 and an extensive prognanmable calculators For a complete listing trdo ner^rcourses will overtd<ed keypunches. punches are included of facilities see Appendix t. 029 keypunches o!^rnedby the college, Student use. to handte ]t is greatfy expected that increase the introduction the demand for Hence, funds fon renting in the budget of this four are availof these the$e aLready two additional proposal. key_ - t l tt- The computer center will be able to supply none than an adequate amount of computation powen to handle the needs of this project. Educational programs of students and professors have top priority on the nachine and turh around time for student jobs is seldon none than one hour at any time. Many studentS find it mor.e convenient to run their programs in the evening. The computet" center is cunrently kept open in the evenings for this eole pur.pose. One of the puuposes of the student aseistants in this pt"oject is to ar.low the tine available for . student runs in the evening to be expanded by having the assistants openate the conputer for an additionalportion of the evening hours in onder to rnininize the inpact of these new courses on the no!,nal day-tine canputer echedule, - 1 2 - BUDGET rnase l - suruten, lg71 Salaries I 1) Etliot 2) Herbert Detrshen, 2/9 of g1Z1600 2800.00 3) 4 student aesistants, 2880.00 Other dinect ' t[) Tanis, 2/9 of $13,S00 $ 3 o o oo.o t2 weeks @g60/wk costs: Keypunch rental, 3 nonthE @$69.30/nonth 5) Refenence naterial 6) Consulting 7) Expendable equipnent and supplie6_2t dLnect oPenating costs Phase I direct 207.90 100.00 fees s00.00 of other cost6 - total Phase fI - Acadenic yea!, 19?1-?2 Salaries I 1) E t t i o t T a n i s , l / q o f $ 1 3, S 0 0 2) H e n b e r " tD e r e h e n , t / a o f $ 1 2 , 6 b 0 3) 4 student assistants, 5 hr./wk, $1.60/h!. for 30 weeks 93375.00 3150.00 900.00 other direct cost8: t+) Keypunchrental, 5) 2 for 9 nonthE @$69.30/nonth Expendabl.eequipnent and supp].ies _ 2t of other q].r'ect oPeratj.ng costs Pha6e II direct coEts - total rnase Salaries L74.00 $8846.40 -L_11- Suruner, 1972 I 1)-2) 3) 1 2 4 ?. 4 0 Same as phase I Two student assistanrs, $5800,00 1 2 w e e k sG $ 6 0 . 0 0 / w k 1.440.00 - 1 3 ! Conference expen6ea: - . 4) Travel expenses-fon conference panticipanl_< @500Ei].ei /participant @Bl/:nite. " ffiit.ffii.:;a,.d' ot ruDtaeaty cn 4 davsror 50 participants $2000.00 2000.00 200.00 other direct costs: 7) Keypunch r.enta1, 8) Expendable equipment and €upplies qLrect operati.ng costs Pha6e IIf direct 2 fot, 3 nonthe @ S6 9.3 0/nonth - 28 of othe? costs - total 4 1 5 .8 0 2 3 7. 0 0 912092.80 Pha6e IV, Academic yea? L97Z-73 Salariee i I) . 4 student aesistants, S hr/wk. for 30. i,rks s 900.00 other d i r e c t c o s t s : 2) Keypunch rental, 3) Expendable equiplent and supplie8 - 2g of other drr]ect operatLng costs aane as q) phaee II 1247.40 $2r.90.40 Phaae V, Sumnren,1gZ3 Salaries: L) Elliot 2) Herbert Dershen, 1/9 of 912,600 3) Secretarial Other direct .4) Tanis, t/9 of $1g,S0O 1400.00 500.00 costs i Expendable equiproent and supplies <rlrect operatang cost S Phase V direct $1s00.00 costs - total - 2? of other 68,00 $3458.00 budeet - All Total Total 1) Salaries - sta Ff 2) Salaries 3) Keypunch rental 4) Reference naterial 5) Consulting fees 6) Conference expenses 7) Expendable equiprnent and supplies 8) SecretariaL direct fndirect Total five phases $21,02s.00 - students 6,120,00 3,118.50 100.00 500.00 4,200.00 1 1 2, 0 0 500.00 costs costs - 45.33 of l) costs - dinect 9,524.32 and indirect $45,799.82 Supplenental SaLaries. The salaries on arstinations .of funding. of thein Budget lnfornatian of Dn. Tanis and Dn. Dershem are b a se d average nine nonth salaniea These arounts will vary slightly over the perl.od from the actuaL ajn- ounts budgeted, but they should be veny close to correct. ConsuLting fees. The consufting :reinbur.se the nenbers of the social vrho serve as consultants data and problens for include ter supplies, paper, duplicating Indirect the negotiated costs. be used to science faculty per.sonnel with use in the proposed courses. and supplies. conputed at 2Z of all conputer and behavioral by pr.ovidj.ng the project Expendable equipnent supplies, fees budgeted !,rilf The expendable equipnent othe!, direct such as printet" suppties fhe indirect and operating forns, IBM cards and plot- and Etationerv, costs vrere conputed in accord niith agneenent dated Aprif 29, Ig70. A xerox copy of this - 1 5 '{ agreement is contained Computqr tine. in Appendix H. The charge fon use of the Hope College IBM f1g0 i6 $30.00 pe'" hour. A11 conputer charges nelated to this project lrill_ be a contribution to the pnoject by Hope ColLege. It is eEtimated that this project !rit1 require over $9,000 worth of conputeri tine. ) APPEND]X A CATALOGDESCRIPTIONOT CURRENT COURSES l,lathematics 27. bifities of digital languages liith emphasis on FoRTMN. tions with 3S. Introductory Includes random vaniables, 55. experience with a in the studentrs _ A general introduc_ students majoning in otherl and no!,naf distribu_ and testing 56. probability pnobabitity nathenatical functions Mathematics of hypotheses, and Statistics and distribution expectati.on, of distributions. variance, prerequisite: Mathenaticat testing to analysis f _ function of and noment cafculus II . probability and Statistics of Mathematics 5S enphaEizing statistics. estiEation, intnoduction for Mathenatical (nay be taken concurrently) theory, Statistics of esti:ration Concepts of probabitity, Continuation Conputer. methods, negnession and correlation, Mathenatics generating Laboratory study of the binonial appl-ications non-pa!'ametric place in society. T$ro Hours, to the area of statistics departnents. Conputers _ Capa_ programrning of a najon problen of interest, Mathenatics tion to Digital- computers and their conputer including field lntl.oduction of hypothese, of variance. negression prerequisite: II _ Sanpling and correlation, Mathenatics SS. APPENDTXB , PROGRAMS RELATEDTO STATISTICSASSIGNED I N M A T H2 7 , f 9 6 9 _ 7 0 1. Write a pr.ogran to process a deck of cards; and standard deviation and print cofltpute the nean the count, mean and standand deviation. 2, Write a progr"aro that reads N integer 80 to a card, this r.eads a value values, all of N fr.on a card and then between 0 and g inclusive, The progran is to print punched the mode (or rnodes) of 6et of numbers and holr nany tirnes the rnode waa attained. Wnite a proglarn that a card followed !'eads the number of observations by N cards, each containing N from a value of X and the cornesponding value of y and cornputes the regnession efficients, the standard error of correlation for of estimate .,., and the coefficient these data sets. l + . Write a Subnoutine which accepts as inputs values A(f), an integer subrqutine N, N real A(N), an integer M, and M boundary values f o r a c o l " L e c t i o Do f f n e q u e n c y c l a s s e s , B ( 1 ) , . . . , i6 assuned that co_ B(M). the values of B are in ascending order, is to leturn to the calling It The prognan the nean and standard deviation of the values A, for each frequency class, the number of data val-ues in that data val-ues in that class, the percentage of c1ass, and the cunul"ative per.centage of data values up to and including that class, - 18 - APPENDIX C TIIE CENTRALLIMIT THEOREMAND UIXED DISTRTBUTIONS : iJeL ^f,^2,...,xn dietribution : be a uandom sample of which has nean, U, and a finite Let X = (1/n) Xi. -t i=1 that The Centr"at Linit si?e n from variance, a o2. Theoren etates , \ - U o / . tn has a liniting iance, 1. nomal distribution (Let N(0r1) denote this !.rith rnean, O, and varEtandard nonnal distri- bution. ) When n is N(o,L) is that "suf,ficientl"y larger'r Wn has an approxlnate A inuLe of thunb n that dist!'ibution. when n is larger is ofte! than about 25, Wn wi].l used appear to have-a N(011) di6tribution. Note that say ver5f l-ittle p1e is taken. appLicable of the Central about the distribution In particulan to nixed lle shall clusion the hypotheses give Lirnit f)lon which the CentraL Linit Theor.en the san_ Theoren is dist!'ibutions. an exanpLe which illustrates of the Central Limit Theoren enpiricaLly the con_ when the - 1 9 - sanpfe for is this taken f,ron a nixed distribution. exanple was done d- -h- l. l.^- }n,a! The sinulation ^^r 1 ^-^ vvrrsBr 5 _ LD | l J-lJu conPuter. E)(AMPLE Ro_1f a fain l"et X equal this spin a spinner interval value. which selects [0rl], .If If the outcome is even, the outcone is odd, a nunben at randon fnon the Let X equal the number selectld, randqm vaniabLe, tribution olserved die. Xrdefined The by the 'rganerr has a nixed di6_ lrhich has a probability of l/6 at each of the lntegens 2r4, and 6, and has a unifonrn density of l/2 the intervat [0,].1. The distribution function of X i s d e f i n e d b y x ( 0, I (XJ xl2, 0 3x { l r rl 2, ! ! x < 2 i 4t6, 2 a . x< \ 5/6, 4 ix 1, l <6, 6 tx. The tnean dnd vaniance of X ane defined by s=/xdf(x) 1 I xl2 dx + 2 ( I / 6 ) + 4 ( 1 / 6 ) + 6 ( 1 / 6 ) v/+i on - 2 0 - I t , x - d F ( x ) - ( e / 4 )- I I0 x'/2 d x +. 4 ( 1 / 6 ) + 1 6 ( t / 6 ) + 3 6 ( 1 / 6 ) _ ( 8 1 / 1 6) 7 r / 1 6. . 6 !+ ^ v 1r^ w2,...,i{n !1E denote n plays of the landon sarnpfe of size n from the distribution is-the di.stribution g a r n e r ! i, . e . , for which F fuirction. shaLl use a chi-square For sevenal va1les of n we goodness of fit test to test the hypotheEis, H, that l.In = X- s/4 ,rrfitrdttr has a N(0,1) distribution. Let the points -2.SS,_2,25,_1.95, ...r 2.25,2.5s partiti.on the set of real nulbens into ]-9 intervals. The end intenvals are infinite rays and the renaining L7 in_ tervalS a!'e of equal 1ength, .30. Let pi equal the proba_ bllity that Wn fal"Ls in the.irth intenvaL lrhen H is true. t ; . 9 , . , p 2 = P ( - 2 . 5 5 < W n s - 2 . 2 S ) , w h e nW n h a s a N ( 0 , 1 ) distribution. We shal.L generate m = lO00 wn rs on the conputer whele 'Let each wn is based on n plays of the Igane. Yg denote " the observed nuraben of wnrs in the i t t h i n t e r v a l . Then ( Y r - 1 00 0 o : ) ' f000D. has approxinate chi-square distrj-buti.on with v = 1 8 -2t- degrees of fneedom when H is InEtead of setting ror a significance each value of n betwe^-r , 4 three independent true. chi_square < u r ur c , levef test, J - n c . L u s f v e ,w e r a n goodness of fit based on a sampfe of size n = 1000 wnrs. have necorded the calcufated for this tests, edch In tabfe 1we. values of 12, For this chi_ square value we have also o e c o r d e d t h e ( l _ p ) , t h quantite, I.e., if U has a qhi-square distni.bution Xt(p). with v degrees of freedom, then p ( u 2 x 2 ( p ) )= p , l . r h e ne i s r e c o r d e d , 1 2 { p ) . . o o o s . For this nrixed distnibution, N(0r1.) distribution when n is larger^ than about g or 9. In order to show graphically lin to the N(0,1) distnibution, we have graphed the priobability N(0,1) distribution hiBtognan chi-square for i{n appear"sto have a the convqlgence of in figunee L,2,3, density function along with. the relative each qet of data which yietded values in table t. and 4 foti the frequency the star,tred . 2 2 - *'(n) 4 539.07 614.34 2rr7.60* 7 6 0. 2 2 189.49 7 6" 7 2 100.44 106.72 48.75 52.85 23 . 9 1 * .158 48.17 .033 32,22 .021 t + 7. 7 6 .009 6 26.11 ,097 29.66 .041 24.09 .152 9 11.?0 .862 2 7. 9 8 . 0 62 20.09{, .328 15.48 .629 22.43 25"r+3 .11r+ ? 9 .6 8 .041 .479 t3,23* .778 .200 13,0r 11 1,) 2 2. ' 1 5 J.J 14 .449 r 8r+4 13.17 L9.88 ' * 48.61 TabLe $ee frguneS Lr2,3, and 4. 1 25.53 .111 ,063 1 3, 8 3 .7rt0 .r81 34,02 . 013 .340 24.38 .lrt3 -.?3- N ru tl lg rr 5 t g F d 'A il LJ rfi |l 2.. o ri ru I 1 7 r u 3 ',, Ul r* A H o 6 tl ' z - 25- m 6 iri tl H m s ,,, I P H f , u o tl 1.. - ?6 - m o ll i 9 O H H i : 6 6 d tl 2.. h -2'l = ORDERSTATISTICS Let Yt, Y2, Y3, Yr be the order statistics sar4ple of size 4 fron val [0,1]. I.e., if the uniform xr, on the inter- x2, x3, xr are the observedsanple v a - L u e s ,t h e n y 1 = m i n { x p x3, x{} distribution of a randon x2, x3, xr}, ..., y,, = nax {xl, x2, are the observed sarple values of the or.der statistics. The probability density functions of the 4 order statis- ti.cs are given by gt (Yr) 4( 1-y, )r 1 g2 (y !2y 2) (y3 ) g! gr (y4 ) 0 1, ,)2 , 0 "(I-y 1 2 y ; ( l - y 3) , 0 1, 4yl 1, 0 l Y q S ]. Each of these functions is equal to zeno elsewher.e. The probabifity function density of the r.ange, R = Y{-Yl is given by h(n) = 121211-r), 03!St, ze!'o elselrhere. Eight thousand sets of four Eet repr"esenting a nandom sample of size 4 fron on the interval tribution oradet'ed from the snallest of ordered numbers, five run, foun tests range. .05 for priobabifities tive fo! The interlval of length for probabi.lity numbers we]le generated, [0,1]. the unifonm dis- Each set of 4 nunbers was to the fargest. chi-square Using the 8000 sets goodness of fit the order statistics [0,1] each was par.titioned tests and one test into for rnrere the subintervals The theor.etical each of the five tests. the subintervals were found using the respec- density functions. A good fit was accepted :r. for each test at an q = .0S significance rT sh rf ird6r nsa rc l r clenst-tJr functt-ons Y rr' v1 2 ' vr r , vr + , r b , 6^ r 7o , 8^, level. and g ane graphed the probability and relative frequency and R, nespectively. histograms fou ltt u . d t . . 1 -32- . - 3 3- - 3 +CONFIDENCEINTERVALS . L e L vx l , x 2 , . . . , x r D e t h e v a l u e s o f a random sample of o t a + Size L0 fron a N(U,12.34) distnibution. val for a particular contain it sample thi6 i + 1 . 6 4 s 1 2 . 3 r + / 1 0. 1 interval Hon'even, if should be true either doe6, or does not, rnany such intervaLs that about 908 of these intervals two nandon Eanples of size 10 fr.on a N(40,12.34) diewere sirulated on the conputer. Fon each of these 52 randon sarnpLes, a got confidence intetival j.f the nean, l'l = 40, wene unknown. In figune 52 intelvals for ltean. were the nean, U. Fifty tribution 1 . 6 4 s^ f ' 3 4 / n , the mean, u. calcufated, contain inter- the unknown mean, y, is trfor 90ts confidence is represented the 52 calculated by a horizontal inter,vals, was calculated as 10 each of these line. r+6 ot' 88.5* contain the - 35- iii i l ] . 5 ) Figure 10 APPENDIX D Re'search and independent study projects Hope Coll-ege r rao yc4 v Theoryrr: in Statistical The problern nay be stated: nust decide which action of actions eituation at D. Richard - "Critenia L 9 5 5 - 1 " 9 6 6 : l^lepfer, in Statiatics Decision A statistician is to be selected in order to do hinself fron a set the most good in a in which natu!'e may be in any one of sever- al possibLe states. The paper presents and Bayesian decision criteria the nininax and conpales their use- fulness, 1 9 6 7 - 1 9 6 8 : Gross, Deanna - "How Lange is Large Enough? A Study of the Ramifications Tlurough Sirulation the validity of the Central Techniquesrr: Linit The paper" illustrates and power of the Central Linit by neane of Monte Carlo techniques lrith conputer". shows that for diff,erent Theoren the IBM 1L30 distributions sampLe sizes are necessary to justify different nornal It Theo!.en (lhis approximation. the annual 1969 neeting the Mathematical paper was presented to of the Michigan Chapter of Association of Ametica. pa]]t of the resul-ts have been submitted ican Statistician a In addition to The Ane!'- f or" publication.) L968-1"969: Dj.ggelnann, Henry Wm. - "RandornNunber Generation Chj.-square Testing'r: The paper discussed pseudo-ran- E=^.erators applicable puter. ip.r (An articte and based on this on the IBM tf30 con- phase of the pro- }lFs r'cen subrnitted to Corulunications of the Association for of the project Conputing Machinery.) considered ,,amifications Another phd.se of the nule - 3 1- of thunb for states that chi-square the expected ce11 should be at least tang, Patricia goodness of fit nunbeta of outcones - !'Application mean of a randon distribution trates ioate empirically n fnorn a rnixed distnibutions, that equal to 10, acadernic cnedit Mehnelt, Elizabeth Theorem to Discrete t.I,, = Vn(X-u)/o (Pal.t of the results of statistics cLass. of Central Linit was given,) P. - r'Applications and Existence Distnibutions of to have an approximate no!.nal dis- nean 0, vaniance 1, t{here X is the sanple with rnean, u, and variance, considered 1970(sunner); when to The American me.rn of a randon sampLe fr:on a discrete 02, distribution The second topic was an interpretation means to -tribution I, The paper conEiders the size of n necessary tribution, it has an approx- This wonk was conducted a6 a nesult No extra for f9" nean 0, and variance of queGtions naised in a nathenatical Meaaett: o2. paper iLlus- this Wrl = 'Ji(X--p ) /o paper have been submitted Stati6tician. Linit Let X be the sam- sample of size normal distribution, n is at least this nixed in each of the Centraf having nean, p, and var.iance, tlro particulan which 5. Tlteorem to a Mixed Distribution'ri ple tests say that. a nean and/or enpirica]ly of what vaniance of a dis- does not exist. Ne!rel1. Jovce - 'tEffects In orlder to apply a t-test, the sample is of Round-off on the t-test": the population flom which taken is assurned to be nonnal. In gen- . e!al, live _ 3q _ data has been rounded off the sample has been taken fron The effect tion of lound variance Monte Callo off, a discrete as a function and the sanple size, techniques so that in effecr population. of the popula- was studied using on the tBM 1130 conputer. - 39 - . APPENDIXE RESUMES Dr. Elliot A. Tanis Education: B. A. Centraf Colfege, Pe11a, Ioina, 1956. University of Iowa, f960 (Mathenatics) P h .D . University of Iov/a, 1963 (Mathematics) Thesis: "Linear Forms in the Or.der Statistics an Exponential Distribution'r from Teaching Experience: Teaching Assistant, University of folra, 19S9-63. Assistant Professor. of Mathenatics, University of Nebraska, 1963-65. Associate Professor of Mathenatics, Hope College, 1965 - Present. other Experience: U. S, Ar.ny, 1957 - 1959, Associate Director, NSf Sunneu lnstitute for Advanced Pl-acement Teachelts of Mathenatics, Hope College, 1967, 1968. Dir"ector, NSf Suruner Institute fo]] Advanced Placenent Teachers of Mathematics, Hope College, 1969. Lecturer, NSI Surnner Institute for Advanced placenent Teachens ^f M.+}j6h:+i^c rr^^6 .^rrege, 1968, 1970. P n o fe s s i o n a f A f f i l i a t i o n s : Menber of: Mathematical Agsociation of America Amenican MathematicaL Society Institute of MathenaticaL Statistics American Statistical As sociation Society of Sigma Xi lllD-L.LCataons: rrAn Itex.ated Procedure for" Testing Equafity of SeveraExponential Distributionsrr, Amer"ican -EoeE Statistical Journal, volurne 58, 1963. (with Dr. EoEert-T. rrlinear forras in the order Statistics fron Distribution,ii The Annals of Mathenatical Volurne35. 1964:- ad Exponential "A Randon Nuinber Generator hrhich Uses the Sun of Tr,ro Congruential @nerators , rr subnitted to Conlunications of the ACM, "The Central Linit Theorem and Mixed Distributions nitted to The A m e r i c a n S t a t i s t i c i a n . .'r sub- 'rA Cand Matching Prob.lem,'r subnxitted to the Mathematical lec. -l+0- rrA Statistical Hypothesis Test for the Classroomrrl subrnitted to The Mathenatics Teactrer, Dr. Herbert Education: rfl.D. L. Dershem Univers-ity of Dayton, Dayton, Ohjo, 1965 ruroue Unaversaty, f967 (Computer Science) Purdue Univeusity, 1969 (Cornputer Science) Thesis: "Approximation of Besselrs Differential operator of fnactionaf order by Finite Difference Openators I Teaching Experience: Teaching Assistant, purdue University, 1968_69. Assistant Professor of Mathenatics, h6pe Col1ege, 1969 - Present. Other Experience: Part time cornputer progranne!, University of Dayton Reaearch Institute, 1 9 6 1 - 1 " 9S 6. Nunerical analyst, University of Dayton Research Institute, S u m h e r so f 1 9 6 5 - 6 2 . Prof essional- Af f itiations : I,lenber of I A,rerican Mathenaticaf Societv Association for Computing Malhinery Publications: I'An Algonithrn for Approxinating the Solution to a Gene!.al fitist order System of Differential Equations,'r U D R I - T M - 6 7 - 1 3 7 ,U n i v e r s j . t y o f D a y t o n R e s e a r c h I n s t i t u t e , 'lApproxination of the Bessel- Eigenval,ue PLoblen by F i n i t e - D i . f f e r e n c e s , ' l subnitted to SIAM J. Nuner. 1970. " B e s s e 1 D i f f e r e n c e S ys t e m s o f f r a c t i o n a l roitted to Math. Anaf. and A p p 1 ., 1 9 70 . 0rder ) " sub- i APPENDIX F Hbpe Coltege Conputer, punch Card and Calculator Equipnent : 6 IBM 029 Card punches I IBM 59 Catid Vetrifie! 1 IBM 83 Card Sor:ter 1 IBM 519 Reproducing punch I IBM L Standard Register-Series 1 IBM 1131 CentraL priocessing Unit I IBM 1133 Muttiplex 1 IBI'{ 1442 Card Read punch I IBM L403 printen I IBM 2310 Disk Storage Unit I Calconp 565 Ptotter, 15 85 Collator 11,1E85 Electronic 1400 Burster Contnol Enclosure De6k CaLculatore (prograromens) 6 IME 308 Digicorders L IBM Typewriter" printout APPENDIX G HOPECOLLEGE Hope College is a four year, - stitution nusic. granting undergr.aduate liberal the degrees of bachefor of arts ants in_ and bachelor of Hope i6 fu11y acc!"edited by The North centrar- Association of colleges and seconda.r"yschoofs, creditation of Teachers Education. and rhe National councir The cur,rent entoflment for Ac- of Hope is appr:oxinateLy 2r000 students. The rnathematics depattnent nembetrs, four ing thein of nine of whon hold the ph.D. degree and two who ane cornpLet_ diesertation for" the doctorate. ated 9l+ najor'6 in the last nathenatica The depantnent has gradu_ S yeane - 28 of theee entered graduate achool and 5 entered professional junion-senion of, Hope College consists school. najons enr"olled. There ane currently 44 -ti3APPENDIXH Xerox Copy of lndir.ect and the Departrnent of C o s t N e g o t i a t i o n A g r e e m e n r B e r w e e n H o p e C o J* c 6 e Health ! Education and Welfane. I|EGOTlATIOTI J,CRE'}'ENT -" mSTtrTUIIoN: tlope College nolland, l,Ilchigeo 49423 "-.AFdl.lB-_19L0_ Il,lI:C REF.: This retG;A Negotla!ion Apreenent da ted January-s, 19 70 SUR.'DCT: Indirect cost rate (s ) for use on gr€nts and contracts wlth the Departneor of Health, r . c u c aE lon, and llelfare. S[CTioll t: Thf and".S contracts. rn" rYPe E q Provlslonal ----= ::::,:, ";r;;.';;;:,"-*;.;;:";":;"":.r;:l;::: * -Bg!-9 9/L/69 U^tfL Anended45,37. provtsronal elLl;e tJoErL Anended re.2t: *8ase! :;:i., Locarrons On_Canpus oii-dlilii! All programs iii il;il#; Dlrect-aa1arle6 and rnagestncluallng vacatlon, holiday and Elck pay, but excludlng other frtnge beneflrs. T)ceatnent of frlnge benefits: Frlnge beneftts appltcable to alltect - .na lragea are tleated Es dlrect costs. ".t."fu" l I I Iull Il: Thts Sectlon shat.i b c u s e d f o r processlng indirec t cosc rafi! publlc vouchers and re ports of e x p e n d i t u r e s . Effcct lve Period From .Tvpe Flnal llnal 81na1. llnal Provislonal *Base: TrestIeot 9/L167 9/L/67 9lI/68 9/L/68 9/1/69 U^tfl To Rate* Locatlon6 A p p lt c a b' e 1o 813r/68 44,Of/. 0n-Caooue All Progra$s 8/3L/68 2r.7s/. off-canius All Prograer 8/3t/69 45.37. On-carmus A11 Prograr.s Bnr/69 I9.ZZ Orf-carpue A11 Programs Arreoded Use retes, erc. ctteat ln Sectlon I above. Sameas cl.ted ln Sectlon I above. of frtnge beneflte: SaEe as clted in Sectlon I.above. For purFoses of deternining indirect costs to be applied to grani I ft"egcittsu ir,el l se ,r n autti i. tviez i n s r a t e s c i t e d i n i i t s s e c t i i n , :t h: :e" :g: :r _ a n: ft e F" e I ;;;;-r;';"";.::^;;; DG\P SF I 5/29/69 lJhite ,:. S;Cttolt tII: Sste AlternstlveE onlyr and are Dot appll.cable to the fotlolring rate altelnatlves are for use on 8g!g The appllcation of th€ rates ln Sectlon lI to contracL6 will be governed by contracts. .the piovislonG of each contract. The altehatl.ve ciled in Sectlon II together !'lth the grantG. lppllcable rate clted ln Sectlon Il shall be applled con6!etently to a1! DHEW Alternatlve I The rate established for the f,i6ca1 pellod to r{hLch the grant budget yeat begins ntll be applled to the entlre grant budget year. Alterngtlve 2. A 61n8le rste w111 be appl.ted to the enttre grant budget year and lhe rate thaL rr111 be u6ed ls rhe one that tE effectlve for the longest pertod durlng Ehat - bud8et year, If the budge.tyear fatl5 equally ln rno rate pertods, the rate of the earller perlod vill be used. Alternatlve 3. Ite rales e6tabllshed for the perlod6 to whtch direct expendttureo are actually llade lri1t be applled to tho66 expendltures. !p$!!!_!f1 A. General LIMITATIoNS! Use of the rate(6) contalned tn thla agreeDent ls subject to atly appltcable 6tatutory o! admtnistratlve IlDltdt{ons, Acceptance of the rate(s) .. atreed to herein 1s prediiated upon the condl.tlons:(t) that no costs other than ' tho6e lncutred by the grantee/conbractor r€re tncluded tn tt6 lndirect co6t raie proposal and lhat such cost6 sre legal. obllgatton8 of the grantee /contractor r (2) that the same cost6 that have been tleated a6 tndl.lect cogt8 have not been claloed a8 dlrect co6t6, and (3) that sloila! types of co6t6 have b€en accorded . conslstent trealEent. ACCOIJNTINC CEANGES:If a predeterElned rafe(a) te contatned tn tht6 agleenent lt lr based on the accountlng systern lh effect 6t the ttEe the proposal rlas 6ubDttted, ChanSe6to the method of sccountlng, lncludlng but not ltotted to, ' chanSes 1n chdrglng a pattlculat type of cost f,ro!| lndlrect to dlrect, lequlre . the prlor approval of, the D1lectot of cranrs Adrolnlstratl.on policyr IttEH. Falture to obtaln 6uch approval $ay result ln 6ubsequentaudl.t dlSallowance6. c. NOTIFIO\TIONTO FEDEML ACENCIES I Copte8 of thls docuDent D6y be plovlded to other Federal offlces 66 a Dean6o! notlfytng theo of the sgreeDent contalned her€1n. D. SIECIAL RENARKS: }:one Grantee ' 8y ,4lfe r! G. SlrscheD&aoo, Chlef Cost Pollcy & Rate Negotlatloa Date 4 1 : . . 2 .t"t , n . . . lfegotlated by q. leldmar Telephone 2o2 962'8334 Eraacb - 4 6 i nETERENCES Appefbaum, Mar'k I. ., an.t cuthrie, i,Use of Computer.s in Undergrad_ uate Statistics Instructionrr proceedings of a Confenence on CoroDuters in the Undergraduate Curnicula, ?he University of loi/a, fS70: pp. 2.1_ 2.3. Cooley, Willian W, Donald. " C o n p u t e r - A ss i s t e d I n s t r u c t i o n in Statistics,,, Stat_ Coxnputation, Acadenic press, New york, 1969. 'TSAMDS,A program Gan!'ett, Henry c. to Generate Empirical Sampling Dis_ tributions of the Meanr" proceedings of a Confenence on Conputels in the ltndergraduate Curricula, The University of jolia, Ig70, pp. 2.32_ 2.38. istical Gilgen, Albe!.t R, and Hall, Expenirnental Design," Michael A. proceedings the Undergraduate Curricula, ', Conputer_As sisted Teaching of of a conference on gonD'teis The University in of lowa, 1970, pp. 2.39- 2.46. 'rThe Computer as an Instnuctional Koh, Young 0. Courser' Proceedings Toot for the Statistics of a Confenence on Conputens in the Undergnadu_ ate Curri.cuta, The Univer"sity of Iowa, 1970, pp. 2.4_2.I7. Lohnes, Paul R. and Cooley, Willian W. Introduction to Statistical Procedures: qrith CornputerExercises, John Wiley t Sons, fnc., New York, 1968. Sterling, Theodor D. and pollack, Teach Introductory Statistics,r' Seynour V, 'ruse of the Conrputer to Comrnunication of tne A ss o c i a t i o n for. Conputing Machine:ry, g, 4 (1966), pp. 21+_279. ster"ling, Theodor. D. and pol1ack, Data Processing. seymour v. rntroduction to statistical P r e n t i c e - H a 1 1 , E n g l e w o o d - C l i f f s , N e r ^.,r e r s e v . 1 9 6 8 . . wallace, David L. rcompr.rtens Are the Main Effects?" New york, Wikoff, in the Teaching of Statistics: Statistical Richard i. icula, CorAputation, Acadeni.c pness, L969. ',Using the Computer in Basic Statj.stics Pnoceedi.ngs of a Conference Cu !,lhetre The Unive?sity on Conputers Courses,,, in the Undergnaduate of lowa, lg70, pp, 2.!a_2,2U. I Techtieal Na.ne of Institution: Addreas: Principal Gratt Period fnvestigatora: Nunber: eoveled Suenar5f Report Hope ColleEe Holtand, Michigan 49423 EUiot A. Tanis He!'be!,t L. Derahem c,J.- 28786 by grant: esrg, rrrr Eo August, Intrioduction the Statistics of 1973 the Computer Ln CunnicuLurn SUM}IARY The purpose of this being deveoLped for a way that grant an intnoduql6ry the student so that illustrated (ii) the Lateot Materials _(i) statistics are course in such always has lear.'ned enough progranming pnogran the next statistics tics is tlrofold: technique and knows enough stati.s_ programning pninciples by examples involving to previously lea!,ned car be fearned statistics. Materials ar.e being developed for a Laboratory for a two semester junior:-senior, leve1 mathenatical probability and 6tati€tic6 counae in whlch students have the opportunity of in_ crea6ing thein understanding and appreciation of the theorv bv perfonning simulations on the conputen. , During the suruner of lgli along with four supporting software pnofessor"s Dershen a n d Tanis, capable students for wnote exercises and devefoped our IBM t13O computer: During the 1971-72 acadenic yean the course changes wer"e intnoduced into our" curniculum. The reaction of the students to both courses was favorable. l,latetrials rnen of 1972. for linited for By the end of this use in other l-ar these natelial"s tors fron both courses are being nevised duning the sum_ other supported by this wil1 colleges be available and universities. be shaled with institutions grant. suruner they will appr.oximately In particu_ S0 educa_ at a Confer"ence in August which is Peraonlrel The follo!,ring by this professors are associated with and suppo!,ted grant I . Dr, Hetrbert of Matheaatics, L. Oersfreur, Assistant profeasor Hope ColLege. Dr, Elliot pnofesaot A. Tanis, of Mathenatics, Hope Co1]ege. The following atudenta neceived Bupport ;uring the sunmer of 1971 and the 19?1-72 acadenic yean: tynn Klaasen Hil-legonds Timothy Hiltegonds Richard pohl : - Glenn weener The following .! student8 ane receiving support during the surnmerof I972 ! Roger Crj.srnan Richard Meyens GaiI Ringsnith Paper6 The following paper.s were plesented on. Conputers in Undergraduate Curricufa 1!gg of that Confe!,ence. at the L9?2 Conferenee and appear in the praceed_ rrA Course on Conputing and Statistics for Social Science Students", by Herbert L. Dershen rrTheory of probability and Statistic8 lLlustra_ ted by the Computerr', by Euiot A. Tanis Confe:rence A Sunnen cgnf,erence for callege teacherE of mathenatics on the use of the eonputer in the undetrgnaduate stati8tics cunricu_ Iun wilL be heLd August 1 4 - L 8 , 1 9 ? 2 . T h i s c o n f e r e n c e is being Bupported by thie gnant. Dutring thie conference we wiLl Bhare ou:r expeniences. fZ?,,t a, f;.--v A/,.-- 2V, tf fl _--==i:- - <qi1 ANNUAI.,PROGRESSREPORT . ,-rul, I, 1972_June3 0 , 1 9 7 3 Nane of Institution: Aqclre a s : Principal Investigatora Gr.ant Nunber,: Period Iltle \ , \ \ Covered by 6rant: I Hope College Bor-land, Michigan 19423 : .E]l-iot A. Tanis EerDert L. Derrahem G,I - 28?86 .tune, I97l to AuguEt, 197A lntroduction of, the Conputer rlr lne statiatics Cu:rniculum 1) HIGHLIGHTSOF PROJTCT ACTIVITY A conference held or college canpus on "nt ""nt August 14-18, 1972 was -at:tended by 52 college teachers of statistics fron throughout the Midr./est, . At this conference the philosophy and the materials of the two cour.ses devefop_ ed under this grant were presented to the panticipants in f,orma1 sessions. During nore infornal_ seesions, the parti_ cipants wene invited to neact to the naterial ard nake suggestions for inpnovenent. Copies of aL1 natenial devetoped, ancLuding exencises, prograrn descniptions and program print_ outa, wene given to afl participants. In addition, materials r"ere sent to over" ZO othef educators thnoughout the country by speciaL request. Duning the 1972_73 acadenic year, counses for gt'art rlrh.ich naterial we)ie taught is being developed under thi6 fon the second time by professons and Dersherr using the nodifications ing sururen' rn addition' raany of the panticipants A repolit of this the annual neeting ticaL Association A report part Tanis made dur.ing the precea_ of the nater.iar.s wer.e used bv in the Sunner Conference. ploject iras made by Dn. Dershen at of the Michigan Section of the Matherna_ of Aner.ica on May 4, 1923. of this Four:th Conference the two etatistics project on Conputers was nade by Dr. Tanis at the in the Undengraduate at the Claremont Colfeges on rlune 20, 1973, A Senior Honons projectr which nade extensive Curricula use of the cornputer software deveioped in this ploject, was compLeted by Roger Cnisman, one of oun nathenatics iajors. A final revision of naterials and pteparation for dissemination is being carliied out during the sun[ner of ]-973. In addition, reactions are being coflected from those edu_ cators !.tho used the naterial this past year. 2) PUBLIC INFORMATION RELEASE In order ucation' it to effectively use a computer as an aid in ed_ is necessany to devel.p and pnograns fon the conputer. material"s, fron they need tine the National futut?e students ceive a berter in addition at Hope and other the tine institutions a couLse was deveLoped for dents in the soci.al sciences. is now an integral j.ll-ustrate This grant fox" at Hope College to wonk together progranming and statistics statistics to ability, so wj.ll re_ educarion. In particular puter For educatons to deveLop these Science Foundation provided Pt"ofessons and students that both course rnatenials part teaching in an integrated In addition com_ way to stu_ a laboratory, of a rnathematical pnobability whlch and course, rrras deveLoped which uses the conputer to empirically many theoletical resul-ts. 3) PERSONNEL The folLowing ed by this grant: pnofessors a:re associated with and supponr- . Dr. Herbei.t L., Delshen, Aseociate pr.ofessor" of Mathernatics, Hope CoLlege. Dr. El1iot A. Tanis, profeseor of Mathenatics, Hope Co1lege. The following Etuden xneror rezl a,'atne rszr_l; duninsthe eum":"."J:;":::- Lynn Klaasen HiUdgonds Tinothy Hillegonds Richard pohl Glen Weener The follor{ing studentg received eupport during nen of L972 and the 19?2_73 acadenic year: the €uln_ Rogen Crisnan The following Richard Meyere student !,eceived support during the eun_ netr of L972: cait The following pnofessor Ringsnith Buis is neceiving suppolit during the sunmer of L9?3: profeasor Mathenatics, John T. Whittle, Assistant priofessolr of Hope Col"lege. 4) PUBLICATIONS Tanis, Elliot Iflustrated A,, rrTheory of probability and Statistics by tlle Conputer,,, proceedings Confele;nce on ComDuters in Under,graduate of The 19?2 Cu:,:ricula, ' l At1anta, Georgia, 1972, pp. S13_S20, Dershen, Herbelt L., rrA Course on Computing and Statlstics for Sociat Science Studentsr,r proceedings of The t9Z2 Conference on ConDuters in Undengnaduate Curricula, Atlanta, Georgia, 19?2, pp. 52S_S2g. T.'ri6' Elriot A.r Pnobability "A Conputer Labonatory for and Statietics,r, proee;dj4gB Mathenaticar of a Fourth Confenence on Conputer s in the Undergnaduate Cur,t?icul a, Clarenont, California, l9?3, pp. q16_426. r##t(;k!* Course on Computing and Statistics for Social Science Students Herbert !. Dersh€in Department of lvtather,latic6 flope College Holland, I{ichigan 616 392_5717 origin of the course. 4p42J Bef,ore the lntroductlon of the course to be descrj,bed in this paper, rnost economics and social science students at Hope College enrolled ln two nathematics courses. These ,,rere introductory statistics and conputer programming. In the acadenic year 7969-70 two developnents occurred which pointed to the advisabil,lty of conbining these courses. First, Dr. Jay lolkert conducted experimentaL sectlo$s of the lntroductory itatistics course at Hope CoLlege in which he used the computer as a tool to obtain illustrative information. He did this by aUowing stridents to use previously written prograns prepared data decks. fhis on was done in conjuction with the project to study the use of the computer in E t a t i s t i c a l i n s t r u c t i o n s p o n s o r e db y the National Science Foundation and the University of North Carofina, iri which Dr. Folkert was a participant. At the cl-ose of the experirnentit was Dr. Folkertrs feelins that the conputer was an asset in such a course but that somethlng was fost because the students were not able to participate in the preparation of the lrograms. Herbert L. Dershen At the sane tlne, a course on conputing f,or social science students was i.ntrqduced into the Hope curricuLum. This course j.s basicaUy a FORfRANprogranning course. Those who were inyolved with teaching this course .found that 6one knowl,edgeof statistics would be valuable to those students enrolled. With sone statis.tics background, the students coutd be assign€d projects their fields pertinent to of interest. It was therefore the consensus of the Hope College mathematics departnent that it would be nore valuable to combine statistics and coroputer programning into one course for social science students rather than to continue with two separate coursea. A proposal was nade in the Faf1 of 19ZO to the National Sclence Foundation f,or the development of such a course, in conjunction l{ith the development of a ]aboratory for the nathexnaticaL probability and statistics course, and this project was fun ded". Value of the cornputer. There are three najor reasons that the conputer is an asset to the introducrory statistics courge. First, exposure to the computer and conputing is a necessary experience for any social scrence studento He should be aware of the economic,socioloeical and pEychologicaf impacts of the computer as weLl- as the applieatlon of the cor0puter to the soLution of problens in his disc ipLine. Herbert l. Dershen Seconalr the conputer can serve as an ald in teachlng statistics theory. 0he student has a nuch g?€ater nastery of a concept after he has explained it to sorneone e1ae. when a student wrl-tes a progran he is doing just this, explaining to the computer how to €olve the problen. For exanple, in the assignment shbwn in Figure 3, the student is asked to explain to the conputer how to test hypotheses. Also the eomputer can be used to provide the student with illustrations whlch further €nhance his understandLng. An exanple of this ls found in the assignrnent given in Figule Z in which the student ls a6ked to tllustrate the normal approxlmatlon to the binonial. Thlrd, th€ conputer allows the student to app]y the statistical plocedures he is 1earnlng to useful aets of datar thus giving hlrn valuable experience in lnterpretin€i results and an interesting incentive for learnlng the statistics. Description is entitled of the course. ,'Applied Statistics The only prerequisite The course being devetoped and Computer prograrnming.,, is high school algebra. It is a two senster course for three hours credit each senester. An outline of the topics presented in the course is found in Figure 1. The students are i.ntroduced to a sinplified forn of input and output so that they can begin progranrains wlthout being exposed to FORIIIAT stalenents. . fhis is done by subroutines written for this course because Hope CoJlege has an fBM 1130 which has no simptified Herbert I,. Dershen lnput/output i.ncluded ln the systen. The author has notes to serve as a text for the class for the FoRTRAN portion of the course because existing texts present the language in a sequence dif,f,erent llon that deternined to be optirial for this course. For exampte, we present subEcripted variableg very early ln the course because thay are ne€ded to program examples and procedures in descrlptlve I tatlstics. The statistlce text chosen i6 Elementarv Statistics by Paul c. Hoel, and the topics covered fol.lov, the presentation of the tExt wlth exc€ptlons noted be1ow. Descriptive Etatietlcs and probablllty are reversed in order that the students nay gain Bore famlllarity with IoRTRANand subscrlpted variables before they are Irepared needed for descriptlve statistics. Sone discusslon ts added conc€r.ning random number generators al"ong wlth ' experlence ln theLr uae when randon sampling is treated. Also, the students are glven practlce in using carmed subroutines ahd lnterpreting and analysis llve their results for regression of variance. data set6, each consisting of, several variables, are stored on a disk. The students learn early in the course how to access this data. These sets are data actually used for research purposes in the areas of sociolory' psychology, education and economlcs, and have been contributed by facuLty on the Hope canpus f,ron their research and fron other books and articles. Already three additional sets have been contributed for next year. Helbert L. Dershen Each stud.ent is assigned one data set and one variable fron that set which he usels throughout the year. This us€ ranges fron findina the nean and standard deviation t o taking randon samples to obtain confidence t o coEeLation intervals and regression with other variables the sarnedata set. in The students work fewer textbook problens than in the standard statistics course. Instead, they write. computer progratns for soLving these problerns and then apply these prograns to their data sets. The Etudenrs are given a total of 25 assigrunents involving the computer throughout the year. ?hi thanoneassienment r", """;:"T;:""::IJ":::-:J:1"1::; involve the writing of a progam, the application of that prog"anr ?nd the sngrreling of some questions intended to bring out the important points. In nany cases students are asked to punch.cards sumnarizing their results so that a nean re6u1t may be obtained for the entire class. Extra credit problems are given atong with each assignnent to challenge the better students. Two sanple assigrunents are found in Figures 2 and 3. DescriDtion of the projecl. The project for developing this course is of tv/o years duration. In the sumner of 19?1 this course was organized with the assi.stance of four senior r0athenatics najors who wlote the necessary subroutines and progranming exanpLes as well as testing the corlputer assigmnents. Herbelt L. Dershen fhe course is being taught for . acadernic yea]. l9?l-ZZ,r{ith 26 students. the first a starting fhe sunner of 1922 wiU tine in the enrollnent of be devoted to revising the course according to the experience gained during the preceding acadenic year. fhe course will then be taught in revised forn during the academic yeat 7972-Zj and the following sunner a f,j-nal report wir'r be nade atong with the final preparation of nateriars such as course outline, Lecture notes and aa6ignments. These nateriaLs will be distributed to allow other staff nenbers to teach the course. ResuLts, f,lrst At this v/ritlng it is the niddle of the year of the project and hence too early for any flrn dlscussion of resuLts. Thus f€r the reaction of the students has been most f,avorable. Some have indicated that they feel the statistics is nade easier to understand by the use of the computer. I suspect, however, that there are others for whom the computer sinply cl.ouds the issue. Xlore students have been conpleting the extra credit portion of the assiglments than was expected. The author feels that the morafe and interest of the students is !.'ruc h greater in this course than in eithex of the two parent courses, and for this reason, the course is a pleasure to teach. There has al.so been a favorable response to this who fee], it course from our social. science faculty is a nost va.luable course and are encouraging their students to take it as well as assisting developnent. us in its I' He"bert !. First fntroduction 2. Dershen 7 Senesrer to conputers _ Conluters, algorithns, languages. roRrRAN _ .o":l1ll:, 31:l::l:_:t srarements, transfer variables, statemenrs, s j.mpLified assisnnen.r inpui/ou.cput. Probability - Rutes of probability, )t counti.ng techniquues 4 . Subscripted variables Descriptive statlstics - F standaida""ijii"^",.iirJ".;:lffffg..rstributions, nean, IuneDyshevrs I:P:!,111lv distributions - Discrete, continuous. inequality, BinonLaJ-, Normaf. 7 . Randomsanpling - Randomnumber generators, sampfe neans. Subprograns - Ilnctions, subroutines. 9 . 9ll':l_ cgmpuler languages and.systems _ COBOr,,tist p"ocessing lanquaees ind tl timesnarrng, man-machine int"";:+I"ilplications' Second Semester 1. Input/Output - FORMAT srarenents. 2. Estination - Conf,idence intervals, 3" lesting. Hypotheses - Type I and II neans, testing proportions. t-distribution. errors, 4. Correlation and regression _ tllultiple non-linear regression, interpretation testins linear - ; ; ; u iregression, ;;:. of 5. Multiple subscripts 6. Chi-square - Cbntingency tables, goodness of fit. 7. Analysis of variance - use of library prograrns. B. Nonparametric tests - Sign test, rank_sun test. 9. lliscellaneous -.Implications of cor0puters, experinnental qesrgn, srmulati on. Iigure 1. OutLine of the course. l{erbert L. Dershem Purposer The purpose of, this assigrunent is to illustrate how the norrnal distri.butic In can be used as an approxination to the binonial, when the approxination is good, and how to use the nornal table progran XNORM. lescriptiont Write a prog"am which reads n and p and using subprog"an BINOM computes the binomial probability that x = k for k = 0,1,...,n, and the nornal probability that k - * S * S k + * f,or the nornal distribution *ith mean np and variance np(f-p), and the sane values of k. Use XNoRI!,I described in Appendix E to f,ind the nornal probabiLity. lutput r The output is to consist of one line containing n, one containing p, folLowed by n+1 lines each containing a value of k, the corresponding binorniat probability and the nornal probabil.ity. Questionst 1. try out your proglam for a variety of, values of n and p. Do the cases where np and n(1_p) are both greater than 5 show good accuracy? How is the accuracy when the above m1e is viofated? 2. Does the accuracy of the approximation tend to varv with k for fixed n and p? If so, how? 3. Do you notice that one probability Tnan the other? is always larEer Can you explain this? Exlra thinEs to IIX| ifrite a program which is the sane as the one descrj.bed above but which conputes the probability that x < k instead of x = k. Ans er questions 1_3 for this program. Iigure 2. sanple Assigrunent Normal Approximation to the Binornial Herbert L. Dershexn 9 Purlose r The purpose of this assignnent is to j.ntroduce the student to testing a hypoth€sis about a sample nean and illustrate type I and type II er"ors. Descriptiont write a functi.on subprogram which has the folloning argumentsr XMUO,ths hypothesized mean, XUU, the actual nean, SIC the actual. standard deviation, and Nr the sample size. The subprogran is to generate 1oo samples of size N fron a norrnaL distri.bution with nean XMUand standard deviation SfG. t'or each sartp::e, a 95% confidence j.nterval is constructed assuning sigma knov.n, and a test is nade as to whethe! XI1UO is in the confldence l n t e r v a l - ' i . e . ' w h e t h e r / A = X I W Oi s accepted. A counr i s m a d eo f t h e n u n b e r o f t i n e s t h e h y p o t h e s i s is accepted fhls ls the value to be returned for the function. write a ca]ling progran which calls thls function four tirnes, each ,tine with XMUO=ZO S,I G = 5 , N = 1 0 , a n d f o r xl/].n=20 ,22 ,25 t3A , qhg! r Your output should consist of XMUo,xlv:UrsIC, N and the value of the function for each call of the function. Questionst 1. Relate the results of each caLl to function to either type I or type II errors. Specify which. 2 . P u n c h a c a r d s u r n r a a r i z i n gy o u r r e s u l t s . 3, Ithat woutd be the effect on your answers if SIc were 10 instead of 5? What if N were 20 instead of 10? What if we used a 99% lnsi.eaa o! 95% confidence intervat? Fieure ,., SampleAssignnent Testing of J{ypotheses llerbert o. Conpute the theoreticalerror I,. Dershen probabillty 10 of making an ln each of the f,our perforned tesr6 of hJDotheses. Indri.iat€ f,or each, whgther. it ts a type I o, a typ€ II error. Compare these rvith your rtisults. 5. the above prog?an t€ste the hypotheels^ = ZO against the two_sided alternatlve /l. / 20. Fow woul.d your anawors b€ chang€d if a on€_sld.eal alternatlve . > 20 were uged? What It /t /L< ZO were the alternativ€? Extra thlnas .E trvt Add enough genelality to your p"ogran that you can try aone of the thlngs suggested ln questlons 3 and 5 above. Flgure 3 (cont.) sanple Assignnent r ! FINAL TECHN]CAI REPORT Name of Institution: Address I Prinqipaf grant Feriod r r.IJ.e : Inve€tigators Hope Collese Holland, Michigan : Number: Covered by G?ant r 49423 Elliot A. Taais Herbert L. Den6hero G , J- 2 8 ? 8 6 JWle, 197L to Augu6t, 1973 fnttroduction of the ConDuter r-n the Statisties Cunrilulurn 1) BRIEF DESCRIPTTON OF PROJECT The purpose of this developed for gr,ant $ras twofold: an integrated prograruning fon social (i) course in stat_istics science students. is MarerraLs.wene ancl cornputer The goal of the counse to use each of these two subjects as an aid in teaching other. (ii) Materiaj-s were developed for a fabotiatory for two senester junior,_senior l"evel nathematical probabtfity statistics course. In this opportunity to increase the theory by perforning their laboratory the students four supporting software Duling a and have the under"standing and apptleciation simulations capable students, of on the conpute!.. Duning the sullunenof L97l professors afong with the Dershen and Tanis, wl.ote exercises and developed for" our" IBM 1130 conputer. the igTl-22 i.ntroduced into acadeni.c yea! the course changes were outr curriculurn. The foun students continued to help us inplernent the changes, Materials for both courses were r^evised duning the suruner of )"972, Three Etudents assisted duning this sunner- A conference lias held on the Hope College campus August 14-18, 1972, which was attended by 52 college teachers of statistics fron throughout the Midwest. At this conference the philosophy and the materiafs of the two courses developed under this grant r,rere presented to the participants in formaf sessions. D u r i n g m o r . ei n f o r m a l s e s s i o n s , t h e p a r t i c i p a n t s were invited for to react improvement. exercases, to the nateriaLs and nake suggestions Copies of al1 materials developed, program descta,iptiolls and program pt"intouts, given to al_l participants. including were , u r 1 n g l n e _ 1 9 / z _ 7 3a c a d e n i c y e a r , , t h e t w o statistics colrrses were taught for the second time by professot,s Dershern and Tanis using the rnodifications made during the preceding 6U4mer. A final revision made during assisted the sunmer of 1973. Plofessors materials statistics into the computer assignnents the exer.cises for was John Whitt]"e this revision, two separate rnanuals. The One fon the applied and computer prograruning course. statistics 2) professor Dershern and Tanis with wer"e collected hanual contains contains of the newfy developed materials the mathemati6al The other nanuaL probability ard labonatory. PUBLICATIONS Tanis, ELliot A., "Theot'y of pnobabifity and Statistics Conference on Conputers in Undergraduate Cunricula, Atlanta, Georgia, L972, pp. .S1g_S20. Dershem, He!"bert L. , A Course on Conputing and S t a t i s t i c s for Social Science Students,!' proceedines of The 1972 Confer.ence on Conputers in Undergraduate C u r n i c u l a , Atlanta, Tanis, El-l,iot Georgia, l-972, pp. S25_528. A., Probabi-lity ltA Coroputer Laboratory and Statistics,r' Clar.emont, Califonnia, Tanis, E1liot tribution for MathematLcal proceedings of a Fourth 1973, pp. 416_426. A, and Crisman, Roger, rTwo Nor]lal Dis_ Problems with the Sa.ne Solutionr!' to The American Star is ti cian. subnitted Tanis , Elliot A., r'Mathematical bability Computer Laboratory, r' subnitt Confelence On Computers in Hi REPORT S . and Stati6tics d to the First British r" Education. Both Dr.. Delshen and D!,. Tani6 gave a report of thj.s Proj ect at a Gr"eat Lakes Colleges Association C uting Symposium I'hich was hel-d Malch Thnee of the 7_g, papers :-g72, at Wabas listed Col1ege. above ere e presented at the Conference€ on Conputers in Undergraduat Curr"icula held in AtLanta in 1972 and in Clarenont in 1973 Dr. Derishen rlade a repolt neeting of the Michj"gan Section of A&erica in May, 1973. one of our €tudents, nade extensive 4) of this of, the At this de8cribed sane his at the annual thenatical Association eting Rogen Cr.isnan, Senio use of the conputeta softw Honors Pr.oject vrhich e developed in thig PERSONNEL The following this professore were ted with and suppo!,ted by grant I tler.be:rt L. Dershern, Dr. Professon of Mathenatics, Dr3, Elliot of The folloqring of oject f971 and the A. tanis, I'Iathe&atics, students Ho e C o l l e g e . pro e a s o r Hope C neceived Lynn Klaasen Hillegonds Richard Pohl Glen Weener.. 1ege. supp r't 19?l--?2 academic year: Tirnothy Hillegonds sociate during the summer The folfowing students received support during the sunLter o f 1 9 7 2 and the 1922-73 academic yea!: Roger Crismai Richard Meyers The fol-lorning student received suppol.t during the summen of 19?2: Gail The fol_fowing Ringsmith Buis Professor received profeesor John T. t\rhittfe, suppont duriing the su[[ner. of Assistant pnofessor of Mathenatics, Hope College. 5) uult computen center this staff wa6 very coopenative th!,oughout project. Dur.ing the development of the conputer soft\rarie, the conputer center contr.ibuted 190,471 hours of tine at $30 pe! hour,. This anounta to a contibution of gS,7L4.13. .qs stated earlier, the S2 conference participants a complete set of outi rnateriafs. natelia1s two foreign to ove! 25 educators In addition thnoughout this !eceived we have sent country and i.n countriea. During the cuxlnent acadenic year two of ou!, colledgues, Professors John hthittle and Jay Fotkent, ane using ou! naterial_s. Their experiences will be helpful in future revision€_. Both Dr. De:.shen and Dr. Tanis plan to subni.t repotits to the NationaL Technical Information Service of the Depdrrnent of Coinmerceto facilitate wide:r dissemination of our resu-Lts. Hope Coflege is cu!,rently which has time sharing of our. nateniaLs installing capabilities. alle applropt iate for a Xerox Signa 6 conputer" We plan to determine whi.ch use with terninal-s then nake the neqgss4r,y adaptatlons. We believe successful. that both parts of of his up his l"abonatory naterials a conpanian textbook Hogg fron have been to COUPUTeat Dartmouth fon faborato!5/ naterials for publica_ and hence i,rider dissenination. a revision projeet Dr. Dershem has applied the puppose of h,riting tion of this and the University Dr. Tanie pLans to publish after lrhich he is wniting the conpletion with D!,. Robert V. of, lowa. {lt*tafu ElLiot A. Tanis Herbent L , D e r s h e n Novenber 16, 19?3 Date FINAL BUDGETREPORT Nane of fnstitution: Principal Investigatons Hope Collese Holland, Michigan : Elliot A. Tanis Herbent L. Delshexl Gratt Nunber I Peniod covered by grant I A. r.lg423 G J -2 8 7 8 6 ,iune 1971 to August 1973 ,LnEroduction of the Cornputer an rne Statistics Cr:rricuf trm SALARIESAND TJAGES Budset Expenditures i triHi!li"i:"i.ffiir=_=i4#: ::: ?i*:"li: #3:;,i.T:lH "f,o_J"-"ii-p.ot_ $r-0,87s :+.. pre_Baccafaureate 1,0,650 Students (4) 5 , 1 20 Jecretarial 500 TOTAL SALARIESANDwAcEs $261fIF EXPENDABLE EQUIPMENT AND SUPPLIES 710 c. T R A V E L ,D o n e s t i c - , 5 0 c o n f e r e n c e p a r t i c i p a n t s g a v g . 5 0 0 x n i l e6 / p a r t i c ipa"i @ e+U;,it.- D. ttO Otl",, -,1.0._"onf,enence partici.pants ^ + qays 2,000 @ $l-O/day 2,000 OTHERCOSTS publicity (confenence) ], 2. Reference Material 3. Key Punch Rentals $ 200 IO0 ? rrn TOTAL OTHERCOSTS 3,420 TOTAL DIRECT COSTS P $11,13s.0 I N D I R E C TC o S T S- t + S . 3 t o f A . I a n d 2 , a s requested TOTAL COSTS A.l4ol.,NT0F AWARD- Rounded 6,24s.0 9,751 $46,026 $46,ooo $46,000.0 ',/t*tA./i^ Ertioi l.-TEris- Proj ect Director Controller. and Chief Fiscal Officer