251key 6/26/08
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Welcome to the Eco251
Web Page
This is a web page in progress. The page contains links to the course syllabus,
course outline with homework assignments, computer problems, and annotated
outline. It will contain old exams and problem solutions after they are discussed in
class. For future use bookmark this page.
My hard drive is regularly checked for viruses. If you get a virus report, please give
me the document number and I will reboot it. Some virus problems have been
reported in one of the computer rooms. These seem to be in the computer, not in the
documents. If this happens to you, report it to the help desk and try another room.
My standing offer: If you submit a good exam problem to me, you might just find it on the
exam. The better thought out it is, the more likely it is to go on the exam with minimal
changes. However, since there are 2 Statistics exams, the numbers are likely to be changed.
A number of students have submitted questions in the past and, I believe, gotten better grades
because of it.
My new standing offer: Work to improve the course, if it is used, will be rewarded by
adding extra credit points to grades on graded homework. This includes, but is not limited to:
1) The first person to notice an error on any posted document except, maybe, exams; 2) help
to improve course graphics and 3) valuable ideas for new documents or problems.
Notices:
You should always be sure that you have a copy of the current outline pages to bring to class.
You should know how to access Blackboard.
http://courses.wcupa.edu/rbove/entering_blackboard_for_the_first_time.doc
In addition to the prerequisites, you are expected to be able to express yourself in
writing. All e-mails to the instructor at rbove@wcupa.edu should be in grammatically
correct but not terribly formal English with the spelling checked.
From the Tutoring Center:
How to sign up for a tutor
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Come to 105 Lawrence Center and fill out a request form. You must be present to be assigned.
You may sign up for up to three different courses. Make sure you give us the course name,
course number, and your section number.
If our tutors are booked, you will be placed on a waiting list. We will contact you as soon as a
space becomes available.
Remember, tutors are assigned on a first come, first serve basis. If you anticipate a problem in a
given subject, sign up early -- crisis tutoring does not work.
The LARC cannot schedule more than one tutoring session per class, per week. Exceptions are
reviewed on a case by case basis.
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If you have a learning disability or require individualized tutoring, let us know right away. We will
try to accommodate your needs as much as possible.
081LARCstaff list.doc
June Notices
June 30 – Grades will be done tomorrow. You can e-mail me to get your grades or arrange to
pick up your exams and answer keys.
June 25 – The exam is on Friday at 6pm. I will be available 4-7pm on Thursday and 1-5:45pm on
Friday. Here are the Solution to Graded Assignment 3 and the Solution to Graded Assignment 4.
Corrections have been made to the last page of the take-home exam.
June 24 – The first problem of the last page of the take-home exam should read as below.
a) A bank knows that 90% of its borrowers have been employed at their current jobs for 3 years
or more. 5% of the borrowers that have been at their current jobs for 3 years or more are behind
in their mortgage payments. However, 15% of the borrowers who have not been at their jobs for
3 years or more are behind in their payments. Let B be the event that a borrower is behind in
mortgage payments. Let E be the event that the borrower has been at the job for 3 years or more.
What proportion of the people who are behind in mortgage payments have been at their jobs for
3 years or more? You should start by identifying the probability that I have requested in terms of
B and E. Then identify 90% and 5% the same way. (4)
June 20 - Here is the Solution to Graded Assignment 2 and the take-home exam due on June 27.
June 19 – After many tribbles and trialations I found the answer to Graded Assignment 2, but I
can’t post it since only one person has handed it in. Maybe tomorrow or Friday. Note the office
hours for next week posted below.
June 18 – A correction was made in e) in Graded Assignment 4.
June 16 – The solution to the first exam is available in OLD EXAMS.
June 12 – The following assignments have been posted Graded Assignment 2 due Wednesday,
June 18, Graded Assignment 3 due Monday June 23 and Graded Assignment 4 also due Monday
June 23. A take-home exam will be posted on June 23 and a Final exam will be given on June
27. This means that a lot has to be covered in the next three classes.
June 11 – Class will meet in A212 for remainder of semester.
June 10 – You should now be able to enter these pages through Blackboard.
June 9 – The first exam is at 8pm on Thursday June 11. Here is the Solution to Graded
Assignment 1 .
References Copied from end of Document.
OUTLINE – and lecture summaries.
LOUTLINE Outline spaced for use in class.
TERMS NOT EXPLAINED ELSEWHERE.
PROBLEM SOLUTIONS
PROGRAMS
OLD EXAMS
SYLLABUS SUPPLEMENT EXCERPTS also see SYLLABUS SUPPLEMENT CONTENTS
ACADEMIC DISHONESTY STATEMENT – See syllabus for current version.
SYLLABUS
HOMEWORK ASSIGNMENTS
PROBLEMS THAT APPEAR IN ONLY THE 8TH OR 9TH EDITION
Macros from Minitab
First Graded Assignment
Solution to the First Graded Assignment
Second Graded Assignment
Solution to the Second Graded Assignment
Third Graded Assignment
Solution to the Third Graded Assignment
Fourth Graded Assignment
Solution to the Fourth Graded Assignment
May Notices
May 31 – Graded Assignment 1 has been posted. No due date has been set.
May 21 – Please see ‘Notice Regarding Grades’ below.
May 8 – Grades will not be complete until Tuesday of next week and I will not be in the office.
If you wish to know your exam and term grade, you may e-mail me. Final exams will be
available for checking during the first term of summer school.
May 2 – Note that I will allow you to start the final exam early. I do not expect to be on campus
regularly for several weeks after Wednesday,
If you are getting or negotiating a ‘No grade’ and intend to make it up rather than
retaking the course, it must be finished before I leave WCU in early August. The solution to last
year’s final is at 251y0741. But you could probably benefit from studying second, third and final
exams in OLD EXAMS.
Notice Regarding Grades
I am retiring in early August. Incompletes cannot be made up after that time except by arrangement with
the department chair, if she is willing.
Every year a significant minority of Students taking Economics 251 and 252 receive a grade of C- or lower.
Almost all of these students are required by the Business program to receive a C or better in the course. When this
requirement was imposed, I asked the faculty if I should now be giving C’s to the people who would have earned a
C- before the requirement was imposed and was told that I should not. Almost all the people who received a grade
of C- or lower for the course received a grade of D+ or lower on the final exam, this was a score of 18 out of a
nominal 75 on the exam.
Every year students who received grades of C- or lower ask me if there is some way they can make up the
grade. Unfortunately this is impractical and defeats the purpose of a grading system. Almost all of these people will
tell me that they worked hard and attended all of my classes. Good intentions, however, are no substitute for being
able to show me that they learned something. I, therefore, must say no to requests to do something to make up the
grade. It just doesn’t seem reasonable to believe that people who learned relatively little during the term are going to
suddenly understand statistics or that I could offer this opportunity to everyone who did not get a C.
Schedule
Monday – Friday
May 19-21
No Office hours (except by
request)
Monday May 26
No Classes
Tuesday May 27
No Office hours (except by
request)
Wednesday May 28
Office Hours 1pm – 2pm
Thursday May 29
No Office hours (except by
request)
Friday May 30
No Office hours (except by
request)
Monday June 2
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Tuesday June 3
No Office hours (except by
request)
Wednesday June 4
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Thursday June 5
No Office hours (except by
request)
Friday June 6
No Office hours (except by
request)
Monday June 9
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Tuesday June 10
No Office hours (except by
request)
Wednesday June 11
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Thursday June 12
No Office hours (except by
request)
Friday June 13
No Office hours (except by
request)
Monday June 16
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Tuesday June 17
No Office hours (except by
request)
Wednesday June 18
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Thursday June 19
No Office hours (except by
request)
Friday June 20
No Office hours (except by
request)
Monday June 23
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Tuesday June 24
No Office hours (except by
request)
Wednesday June 25
Office Hours 4pm – 5:45pm
ECO251-21 (A215) 6-10pm
Thursday June 26
No Office hours (except by
request)
Friday June 27
Office Hours 1pm – 5:45pm
GRADED ASSIGNMENTS – DO NOT DO 2008 SPRING ASSIGNMENTS!
First Graded Assignment
Solution to the First Graded Assignment
Second Graded
Assignment
Solution to the Second Graded Assignment
Third Graded Assignment
Solution to the Third Graded Assignment
Fourth Graded Assignment
Solution to the Fourth Graded Assignment
You should always be sure that you have a copy of the current outline pages to bring to
class. You should know how to access Blackboard.
http://courses.wcupa.edu/rbove/entering_blackboard_for_the_first_time.doc
In addition to the prerequisites you are expected to be able to express yourself in
writing. All e-mails to the instructor should be in grammatically correct but not
terribly formal English with the spelling checked! Note the following rules!
1. Verbs HAS to agree with their subjects.
2. Prepositions are not words to end sentences with.
3. And don't start a sentence with a conjunction.
4. It is wrong to ever split an infinitive.
5. Avoid clichés like the plague. (They're old hat.)
6. Be more or less specific.
7. Parenthetical remarks (however relevant) are (usually) unnecessary.
8. Also too, never, ever use repetitive redundancies.
9. No sentence fragments.
10. Don't use no double negatives.
11. Proofread carefully to see if you any words out or mispeld something.
12. Eschew obfuscation.
13. i get very angry if you Don’t capitalize correctly.
14. Pronouns should be put in the correct case, and the passive voice should be avoided
by you and I.
15. I were very happy if you would have learned the difference between the subjunctive
and the conditional.
16. Be fermiliar with the spelling and pronunciation of words like higharchy.
17. Its very annoying if you don’t know when ‘its’ needs it’s apostrophe.
18. Writing carefully, dangling participles must be avoided.
Do you know the difference between ‘you and I’ and ‘you and me,’
‘fortuitous’ and ‘fortunate,’ ‘enormousness’ and ‘enormity,’ ‘lay’ and ‘lie,’
‘reticent’ and ‘reluctant,’ ‘mischievous’ and ‘mischeevious?’ Most students
and too many faculty and newspaper editors don’t. ‘mischeevious’ is not a
real word, but I have been hearing ‘mischievous’ pronounced that way too
often.
SPELLCHECKER
Eye halve a spelling chequer
It came with my pea sea
It plainly marques four my revue
Miss steaks eye kin knot sea.
Eye strike a key and type a word
And weight four it two say
Weather eye am wrong oar write
It shows me strait a weigh.
As soon as a mist ache is maid
It nose bee fore two long
And eye can put the error rite
Its rarely ever wrong.
Eye have run this poem threw it
I am shore your pleased two no
Its letter perfect in it's weigh
My chequer tolled me sew.
All rights reserved (c) Novinite Ltd., 2001-2004.
You are permitted to use any of the articles only if you obligatory quote the source.
Sofia Morning News is a registered trademark No 33727/10.08.1998 under the Bulgaria's Patent Office.
Office Hours: (Call 610-436-2134 if you're not sure! But you are always
better off e-mailing rbove@wcupa.edu) . I am often in during afternoons outside
of these hours.)
If you would prefer to get documents by email, send me your address and I
will put together a list. In general, if you have trouble with any document,
send me an e-mail and I will try to e-mail the document to you from my
personal stash. However, if your equation writer works as badly as the one I
have on my old computer at home, you may not be able to read parts of the
documents.
SYLLABUS
HOMEWORK ASSIGNMENTS
PROBLEMS THAT APPEAR IN ONLY THE 8TH OR 9TH EDITION
251wrksht is a worksheet for problems G3A and G4.
Document continues on next page.
OUTLINE – and lecture summaries.
LOUTLINE Outline spaced for use in class.
TERMS NOT EXPLAINED ELSEWHERE.
PROBLEM SOLUTIONS
PROGRAMS
OLD EXAMS
SYLLABUS SUPPLEMENT EXCERPTS also see SYLLABUS SUPPLEMENT CONTENTS
CURRICULUM VITAE
Document Covers
251SyllCover
251descrCover
251probCover
251distrCover
Behrenson Text CD-ROMs
http://courses.wcupa.edu/rbove/Berenson/CD-ROM%20Topics
http://courses.wcupa.edu/rbove/Berenson/Data%20Files-8th/
http://courses.wcupa.edu/rbove/Berenson/Data_Files-9th/
Document continues on next page.
ADDITIONAL RESOURCES: Dr. Daniel Mohan has kindly provided a list of websites related to statistics. In
particular a copy of Minitab can be rented from the Minitab website. Note: A new window will be popped up to
display the linked pages. You will want to close this window when you are done looking at the selected site.
SPSS Home Page
Minitab Home Page
Texas Instruments Calculators
SAS Home Page
Frontline Systems
LINDO Systems
http://www.spss.com/
http://www.minitab.com/
http://www.ti.com/calc/
http://sas.com/
http://frontsys.com/
http://www.lindo.com/
Stata Corporation
http://www.stata.com/
I am going to start my own list of additional resources here.
Measuring Inequality, a PowerPoint presentation which explains various measures of
income inequality, is available on the ECAAR website. This presentation was prepared
by Paul Burkholder, ECAAR's Project Manager, as part of our project on "Inequality and
Democratic Development." Paul is a recent graduate of Temple University, with a
degree in economics. He does research for current and potential projects, and assists
with media and member outreach.
See
http://www.ecaar.org/Inequality/powerpoint/measuring%20inequality_files/frame.htm