U De Mann Whitney Spss. Spss is reporting a z score of 2 049 and a 2 tailed p value of 040. The most common scenario is testing a non normally distributed outcome variable in a small sample say n 25.
Il permet de comparer la distribution de 2 échantillons indépendants qui peuvent être différents. This means we can use the value of z to derive our p value. I perform and interpret a mann whitney u test in spss.
Select the mann whitney u test option.
Le test u de mann whitney est un test non paramétrique. 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. This means we can use the value of z to derive our p value. This would normally be considered a significant result the standard alpha level.
