Mann Whitney U Test Example. Learn and reinforce your understanding of mann whitney u test. The mann whitney test is an alternative for the independent samples t test when the assumptions required by the latter aren t met by the data.
The test statistic for the mann whitney u test is denoted u and is the smaller of u 1 and u 2 defined below. Examples of conducting a mann whitney u test. The most common scenario is testing a non normally distributed outcome variable in a small sample say n 25.
Spss mann whitney test simple example by ruben geert van den berg under nonparametric tests statistics a z.
A good example of a non parametric test is the mann whitney u test also known as the mann whitney wilcoxon mww or wilcoxon rank sum test. Check out our video library. The mann whitney test is an alternative for the independent samples t test when the assumptions required by the latter aren t met by the data. For this example in our example u 3.
