Question

A random sample of eight pairs of twins were randomly assigned to treatment A or treatment B. The data are given in the following table.
a. Is there significant evidence that the two treatments differ using an α = .05 Wilcoxon signed-rank test.
b. Compare your conclusion with the conclusions obtained using the paired t test and sign test in Exercise 6.23.


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  • CreatedNovember 21, 2015
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