252cp403 12/03/03 (Open this document in 'Page Layout' view!)
Last Computer Problem
This problem is problem 14.37 in the 9 th edition of the textbook. The data are on the next two pages. As
far as I can see, the problem is identical to Problem 15.10 in the 8th edition, but you should use the 9th
edition data which can be downloaded from the website at
http://courses.wcupa.edu/rbove/eco252/Colleges2002.MTP or the disk for the 9th edition. To download
from the website enter Minitab, use the file pull-down menu, pick ‘open worksheet’ and copy the URL into
‘File name.’ If you can save the worksheet on the computer on which you are working.
Read through the document 252soln K1 and use the analysis there to help you with this problem. In
particular Exercise 14.35 is almost identical to this problem and my description is very similar. Once you
get the data loaded, you need a column for the interaction variable and two columns for the input to the
prediction interval.
1
252cp403 12/03/03
Contents of C1
Row
School
1 UniversityofArizona
2 BallStateUniversity
3 Cal.StateUniv.-Fresno
4 ClemsonUniversity
5 James Madison University
6 University of SouthFlorida
7 FloridaStateUniversity
8 GeorgeMasonUniversity
9 GeorgiaInstitute ofTechnology
10 MontclairStateUniversity
11 NorthCarolinaStateUniv.
12 UniversityofOregon
13 PurdueUniversity
14 SanDiegoStateUniversity
15 SlipperyRockUniv.ofPenn.
16 SUNY-Binghamton
17 TexasA&MUniversity
18 Univ.ofGeorgia
19 Univ.ofHawaii-Manoa
20 Univ.ofHouston
21 Univ.ofMaryland
22 Univ.ofMass.-Amherst
23 Univ.ofNevada-LasVegas
24 Univ.ofNewHampshire
25 Univ.ofNorthCarolina-C.H.
26 Univ.ofTexas-Austin
27 Univ.ofVermont
28 VirginiaCommonwealthUniv.
29 VirginiaTech
30 WestVirginiaUniversity
31 AmherstCollege
32 BabsonCollege
33 BostonCollege
34 BostonUniversity
35 BowdoinCollege
36 BryantCollege
37 BucknellUniversity
38 CanisiusCollege
39 CarnegieMellonUniversity
40 CaseWesternReserveUniv.
Row
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
C2
C3
C4
C5
C6
Type First
Third
Room
Annual
of
quartile quartile and
Total
School
SAT
SAT
Board
Cost
ness
0
990
1230
6124
10356
0
935
1152
5646
12480
0
800
1070
6302
9476
0
1090
1280
4454
12932
0
1080
1250
5568
11472
0
940
1150
5600
10410
0
1060
1270
6450
10316
0
970
1170
5560
13716
0
1250
1420
5800
13986
0
900
1110
7568
8525
0
1070
1280
5796
15111
0
1000
1230
6252
14890
0
1020
1250
6340
16260
0
920
1140
8307
7210
0
850
1060
4298
11650
0
1120
1310
6102
9451
0
1070
1290
6030
11288
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
ClarkUniversity
DrewUniversity
GrinnellCollege
ColgateUniversity
CollegeofHolyCross
EmoryUniversity
FordhamUniversity
Franklin&MarshallCollege
GeorgeWashingtonUniversity
GeorgetownUniversity
GettysburgCollege
HarvardUniversity
IonaCollege
LafayetteCollege
LehighUniversity
HofstraUniversity
NewYorkUniversity
NiagaraUniversity
NorthwesternUniversity
ProvidenceCollege
RiceUniversity
Pace University
SeattleUniversity
SetonHallUniversity
SienaCollege
SouthernMethodistUniversity
St.BonaventureUniversity
StanfordUniversity
SyracuseUniversity
TulaneUniversity
Univ.ofChicago
Univ.ofMiami
Univ.ofNotreDame
Univ.ofPennsylvania
Univ.ofPortland
Univ.ofScranton
VanderbiltUniversity
VillanovaUniversity
WakeForestUniversity
Yale University
C7
Average
Indebted17772
15700
14004
13970
12474
16715
14737
14110
16958
15464
15999
19916
15486
13000
21100
13957
14418
2
18
0
1110
1300
5504
12792
13550
3
252cp403 12/03/03
Row
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
C2
C3
C4
C5
Type First
Third
Room
of
quartile quartile and
School
SAT
SAT
Board
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
980
920
1150
1010
880
1010
1150
1090
1040
920
1080
930
1320
1170
1220
1210
1280
1000
1200
980
1280
1240
1060
1100
1250
1240
1140
1300
1070
1170
1150
1290
1150
1380
900
1160
1200
1010
1230
940
1300
1090
1320
960
1040
960
1020
1060
950
1360
1110
1240
1300
1090
1260
1310
1040
1000
1230
1150
1230
1360
1180
1150
1350
1230
1130
1210
1370
1330
1230
1150
1290
1125
1510
1330
1390
1370
1440
1180
1370
1190
1470
1440
1270
1320
1440
1400
1320
1460
1260
1370
1330
1450
1310
1570
1100
1330
1370
1190
1420
1130
1480
1260
1520
1150
1250
1160
1200
1270
1150
1550
1300
1410
1490
1290
1450
1490
1250
1210
1400
1320
1380
1540
5359
5538
7101
5115
6140
5882
6216
5975
6378
5750
5374
5572
7380
9676
9574
8978
7305
7776
6052
7540
7534
6750
4950
7288
6330
6775
8000
8498
9177
6580
9110
9672
6640
8502
9698
8069
7530
7530
10430
7300
8446
8120
7480
7590
6627
8302
7030
7954
6200
8680
9510
7392
8728
8060
6510
8244
6250
8772
9060
8330
7190
8240
C6
Annual
Total
Cost
9829
9888
14434
14655
9831
17830
15140
10790
21484
14888
13552
9710
28310
26000
25862
27414
28685
19776
27531
18840
27116
22680
25865
26346
25865
23530
28355
26440
26932
23463
27280
27820
27120
27448
17886
26142
26180
15722
26646
16550
27228
20840
17526
18208
18855
20830
16945
21942
16845
27204
23424
28310
27825
24810
25852
27988
20620
20448
27087
23751
24750
27130
C7
Average
Indebtedness
13164
12988
14076
15526
12000
19515
11156
17200
22425
21994
17014
18273
12270
23000
17517
17808
14682
20479
15000
19782
18280
21902
17650
13064
17650
13324
12822
16063
18350
17152
17774
24894
14800
13360
17096
15393
18469
14624
20079
17606
13253
19625
12525
19402
22695
19406
15500
19792
16843
17185
18925
19873
12787
12246
22270
21556
18595
14900
21015
20874
20339
18786
4
5