The Mann-Whitney U test is equivalent to the Wilcoxon rank-sum test for independent samples in the sense that they both apply to the same situations and always lead to the same conclusions. In the Mann-Whitney U test we calculate.
Use the pulse rates listed in Table 13-5 in this section to find the z test statistic for the Mann Whitney U test. Compare this value to the z test statistic found using the Wilcoxon rank-sum test.
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