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nonparametric-tests-guide
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Apply Mann-Whitney, Kruskal-Wallis, and other nonparametric methods
When to use
- | Parametric Test | Nonparametric Alternative | Use Case | |----------------|--------------------------|----------| | Independent t-test | Mann-Whitney U | Compare 2 independent groups | | Paired t-test | Wilcoxon signed-rank | Compare 2 r…
When not to use
- Parametric tests when assumptions are met
- Data that are approximately normal with n > 30
- Homogeneous variance scenarios requiring greater statistical power
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