One common use of statistics is to rank a set of cities so the Number 1 is "best"and Number Last is "worst."Suppose you thought that west coast cities were better than mid-America cities, which were better than east coast cities. Which statistic should you use to make this comparison? A) Mann-Whitney U test B) Wilcoxon matched-pairs signed-ranks T test C) Wilcoxon-Wilcox multiple comparisons test D) Spearman r_s.

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The Wilcoxon-Wilcox multiple comparisons test is used to compare multiple groups of data. In this case, we have three groups of cities: west coast, mid-America, and east coast. We want to compare these groups to see which one is "best" and which one is "worst." The Wilcoxon-Wilcox multiple comparisons test is the appropriate statistic to use for this comparison.

One Common Use of Statistics Is to Rank a Set