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→Comparing Means
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*'''Wilcoxon rank sum test'''<br>='''Mann-Whitney test'''
::''<math>H_0</math> is '''medians of both or means of ranks''' in the two population'''s''' are the same''
:#To rank whole combined observations of two groups
:#To separate back the ranks into two groups
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*'''Kruskall-Wallis test'''
::''<math>H_0</math> is distribution '''medians or means of outcomes ranks''' in the all population'''s''' are the same''
:#To rank whole combined observations of all groups
:#To separate back the ranks into original groups
