Answered: Dormitory Year A B C D Freshman 7 8 6 9…

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.CR: Chapter Review

Problem 37E: Find the positive geometric mean between 4 and 64.

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Random samples of two freshmen, two sophomores, two juniors, and two seniors each from four dormitories were asked to rate, on a scale of 1 (poor) to 10 (excellent), the quality of the dormitory environment for studying. The results are shown in the attached table:

a. Set up the analysis of variance table.
b. Test the null hypothesis that the population mean ratings are the same for the four dormitories.
c. Test the null hypothesis that the population mean ratings are the same for the four student years.
d. Test the null hypothesis of no interaction between student year and dormitory rating.

Dormitory
Year
A
B
C
D
Freshman
7
8
6
9
Sophomore
8.
8.
Junior
4
6.
7
7
Senior
4
6
8
5
6.
7
976N
657

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