what is a nonparametric test? What is a parametric test

what is a nonparametric test? What is a parametric test

Choose two of the following three questions and post your answer:1. In your own words, what is a nonparametric test? What is a parametric test (Section 13-2)?
2. In your own words, identify an advantage of using rank correlation instead of linear correlation (Section 13-6).
3. In your own words, what is the difference between a nonparametric test and a distribution-free test (Section 13-7)?

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