Multiple Choice
Which of the following refers to a nonparametric method to compare two populations,when the samples are independent and the data are either ordinal or interval,and where the normality requirement necessary to perform the parametric test is not satisfied?
A) Sign test
B) Wilcoxon signed rank test
C) Equal-variance t-test of μ1 - μ2
D) Wilcoxon rank sum test or Mann-Whitney test
Correct Answer:
Verified
Correct Answer:
Verified
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