Please answer the following questions in detail (It is simple write-up of 2 page about 600 words for all of the following 3 questions)
1. What is a nonparametric procedure? Describe specifically when you would utilize a nonparametric test.
2. Under what conditions should you use the Wilcoxon sum rank test?
3. Under what conditions should you use the Kruskal-Wallis rank test?