7.4 Four different methods of preparing for a college entrance exam were compared. They are labeled 'A', 'B', 'C', and 'D'. The following exam scores were obtained for each of the four programs: Program A 560 520 530 525 575 527 580 620 B 565 522 520 530 510 522 600 590 C 512 518 555 502 510 520 516 D 505 508 512 520 543 523 517 Compare the four preparation methods. Use a multiple-comparison method of your choice to make pairwise comparisons. Create two contrasts: One to compare methods A and B to C and D, the other to compare method D to the other three.

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7.4 Four different methods of preparing for a college entrance exam were compared. They are
labeled 'A', 'B', 'C', and 'D'. The following exam scores were obtained for each of the four
programs:
Program
A
560
520
530
525
575
527
580
620
B
565
522
520
530
510
522
600
590
C
512
518
555
502
510
520
516
D
505
508
512
520
543
523
517
Compare the four preparation methods. Use a multiple-comparison method of your
choice to make pairwise comparisons. Create two contrasts: One to compare methods A
and B to C and D, the other to compare method D to the other three.
Transcribed Image Text:7.4 Four different methods of preparing for a college entrance exam were compared. They are labeled 'A', 'B', 'C', and 'D'. The following exam scores were obtained for each of the four programs: Program A 560 520 530 525 575 527 580 620 B 565 522 520 530 510 522 600 590 C 512 518 555 502 510 520 516 D 505 508 512 520 543 523 517 Compare the four preparation methods. Use a multiple-comparison method of your choice to make pairwise comparisons. Create two contrasts: One to compare methods A and B to C and D, the other to compare method D to the other three.
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