A Wilcoxon Rank Sum Test for Comparing Two Populations Involves

question 103

Short Answer

A Wilcoxon rank sum test for comparing two populations involves two independent samples of sizes 15 and 20. The unstandardised test statistic (that is the rank sum) is T = 210. The value of the standardised test statistic z is: $\begin{array} { | l | l | } \hline \text { A. } & 14.0 . \\\hline \text { B. } & 10.5 . \\\hline \text { C. } & 6.0 . \\\hline \text { D. } & - 2.0 . \\\hline\end{array}$

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