Follow the steps outlined in Exercise 15.81 to find the approximate critical value (at = .05)

Follow the steps outlined in Exercise 15.81 to find the approximate critical value (at α = .05) of Spearman’s test for rank correlation for the case n = 10. In part a you will need to randomly order the n = 10 y ranks and n = 10 x ranks.

Data from exercise 15.81

Throughout this chapter we have omitted the theoretical derivations of the null distributions of the various nonparametric test statistics. However, we can use computer simulation to derive approximate rejection regions for the tests. Consider the problem of finding the approximate sampling distribution of the Wilcoxon rank sum statistic for the case n₁ = n₂ = 10.