Introductory Statistics (10th Edition)
Introductory Statistics (10th Edition)
10th Edition
ISBN: 9780321989178
Author: Neil A. Weiss
Publisher: PEARSON
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Chapter 10.6, Problem 177E

Understanding the Concepts and Skills

10.177 Suppose that you want to perform a hypothesis test based on a simple random paired sample to compare the means of two populations and you know that the paired-difference variable has a symmetric distribution that is far from normal.

  1. a. Is use of the paired t-test acceptable if the sample size is small or moderate? Why or why not?1
  2. b. Is use of the paired t-test acceptable if the sample size is large? Why or why not?
  3. c. Is use of [he paired Wilcoxon signed-rank test acceptable? Why or why not?
  4. d. If both the paired t-test and the paired Wilcoxon signed-rank test are acceptable, which test is preferable? Explain your answer.
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Introductory Statistics (10th Edition)

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