In a normal approximation to the Wilcoxon rank sum test, the standardized test statistic is calculated as z = 1.96. For a two-tailed test, the p-value of the test is 0.025.

Name: In a normal approximation to the Wilcoxon rank sum test, the standardized test statistic is calculated as z = 1.96. For a two-tailed test, the p-value of the test is 0.025.
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Quizplus · Accepted Answer

In a two-tailed test, a z-value of 1.96 corresponds to a p-value of 0.05, not 0.025.

In a Normal Approximation to the Wilcoxon Rank Sum Test