A Nonparametric Method to Compare Two Populations,when the Samples Are

question 123

Multiple Choice

A nonparametric method to compare two populations,when the samples are matched pairs and the data are interval,and where the normality requirement necessary to perform the parametric test is unsatisfied,is the:

• A)Wilcoxon rank sum test.
• B)sign test.
• C)matched pairs t-test.
• D)Wilcoxon signed rank sum test.

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