In statistics, the Mann–Whitney U test (also called the Mann–Whitney–Wilcoxon (MWW), Wilcoxon rank-sum test, or Wilcoxon–Mann–Whitney test) is a nonparametric test of the null hypothesis that it is equally likely that a randomly selected value from one sample will be less than or greater than a randomly selected value from a second sample.
Variable X
: independent or explanatory variable
Treatments
: dependent or respones variable
Hyphotesis
: insert trait or variable measured.
Mean value
: insert the mean that you want to compare.
Corder, G.W.; Foreman, D.I. (2014)
. Nonparametric Statistics: A Step-by-Step Approach. Wiley. ISBN 978-1118840313.
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