The First Step in a Wilcoxon Rank Sum Test Is

Short Answer

The first step in a Wilcoxon rank sum test is to combine the data values in the two samples and assign a rank of 1 to the: $\begin{array}{|l|l|}\hline A&\text {smallest observation. }\\\hline B&\text {middle observation. }\\\hline C&\text { largest observation.}\\\hline D&\text { observation that occurs most frequently.}\\\hline \end{array}$