The Basic Practice of Statistics
The Basic Practice of Statistics
8th Edition
ISBN: 9781319042578
Author: David S. Moore, William I. Notz, Michael A. Fligner
Publisher: W. H. Freeman
Question
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Chapter 28.5, Problem 14AYK

(a)

To determine

To check: Whether the data shows that sharing a painful experience in a small group leads to higher bonding scores for group members than sharing a similar non-painful experience or not.

To explain: The reason for the two-sample t test being reluctant to use and apply Wilcoxon test.

(b)

To determine

To check: Whether or not the data show that sharing a painful experience in a small group leads to higher bonding scores for group members than sharing a similar non-painful experience, on average.

To find: The hypotheses, the test statistic, the P-value and conclusion.

(c)

To determine

To identify: The features of the data account for the difference in the results of the t test and Wilcoxon test.

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