A new table of critical values for the Mann-Whitney (Wilcoxon) two-sample statistic is presented, extending previous tables such as those of Wilcoxon [10], White [9], Van der Reyden [7], Auble [1], ...

Four statistics which may be used to test the equality of population means are compared with respect to their robustness under heteroscedasticity, their power, and the overlap of their critical ...