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Wilcoxon Signed-Ranks Test for Freshman 15The following

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 1BSC Chapter 13.3

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 1BSC

Wilcoxon Signed-Ranks Test for Freshman 15?The following table lists some of the weights from Data Set 4 in Appendix B. Those weights were measured from college students in September and later in April of their freshman year. Assume that we plan to use the Wilcoxon signed-ranks test to test the claim of no difference between September weights and April weights. What requirements must be satisfied for this test? Is there any requirement that the populations must have a normal distribution or any other specific distribution? In what sense is this Wilcoxon signed-ranks test a “distribution-free test”?

Step-by-Step Solution:

Solution 1BSC Step 1 We assume that we plan to use the Wilcoxon signed-ranks test to test the claim of no difference between September weights and April weights. Here In order to use the Wilcoxon sign-ranks test the following requirements must be satisfied : (i) The given data are simple random sample data. (ii) this is approximately symmetric of the population differences of a distribution.

Step 2 of 2

Chapter 13.3, Problem 1BSC is Solved
Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Wilcoxon Signed-Ranks Test for Freshman 15The following