What is a nonparametric procedure? describe specifically, Ask an Expert

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Please answer the following problems in detail (It is simple prepare-up of 2 page about 600 words for all of the following 3 problems)

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?

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