The Wilcoxon Rank-Sum Test Is an Appropriate Test When

question 41

Multiple Choice

The Wilcoxon rank-sum test is an appropriate test when:

• A) comparing two population proportions, assuming the underlying distributions are normal.
• B) comparing two population medians, assuming both populations are mound-shaped symmetric.
• C) comparing two population medians when the underlying distributions are non-normal or when the data are ranks.
• D) testing whether the median value from a single population is different from an assumed value when the distribution is normal.

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