The parametric test that is equivalent to Wilcoxon sign rank test.

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Chapter 13.4, Problem 1E

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To find: The parametric test that is equivalent to Wilcoxon sign rank test.

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I ran the code, it is included here as well as the output. The problem I am having is I do not understand the bolded part of this question. What type of remarks do you think they are looking for in the solution? If you think the normality assumptions are violated, you need to run some other kind of test, like a nonparametric test. One reasonable choice would be the Mann-Whitney/Wilcoxon rank-sum test. Use R to run this test. Provide your code, output, and remarks in your solutions. wilcox.test(old, new, alternative = "two.sided", exact = F, correct = F) Wilcoxon rank-sum test data: x and y W = 217.5, p-value = 0.07908 alternative hypothesis: true location shift is not equal to 0