Which of These Tests Is a Nonparametric Method to Compare

question 12

Multiple Choice

Which of these tests is 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?

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

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