Wilcoxon Rank-Sum Distribution Table,Student Links:Wilcoxon Rank-Sum TableSuppose the observed Wilcoxon-Mann-Whitney (WMW) test-statistics U obs is the smallerof the two calculated rank-sum values (U 1 and U 2).
![Rank Rank](http://www.psychologywizard.net/uploads/2/6/6/4/26640833/6586109_orig.jpg)
Let m, n be the smaller and larger sample size respectively. The upper and lower critical bound for the rank sum statistic are typically defined as critical values for.