The non parametric equivalent of an unpaired samples t-test____________?
Correct answer: B. Mann-Whitney U test
- A. Kruskal Wallis Test
- B. Mann-Whitney U test
- C. Wilcoxon signed rank test
- D. Sign test
Explanation
The Mann-Whitney U test is the usual nonparametric alternative to the independent or unpaired two-sample t-test. The Wilcoxon signed-rank test is instead used for paired samples, while Kruskal-Wallis handles more than two independent groups.
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