The Wilcoxon rank sum test (like most of the nonparametric tests presented in your text) is used to determine whether the population distributions have certain identical characteristics. Which of these properties would be included in that list of characteristics?
A) locations
B) spreads (variances)
C) shapes
D) locations, spreads, and shapes

Question

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The Wilcoxon rank sum test (and most nonparametric tests) is used to determine whether population distributions have identical characteristics in terms of location, spread, and shape. Therefore, all three properties would be included in the list of characteristics.

The Wilcoxon Rank Sum Test (Like Most of the Nonparametric