Mann-whitney U test??

#1
What if I have two independent groups. In one of the groups age is normally distributed and in the other group age is not normally distributed. Which test should I use to analyze if there is a significant difference between the groups? Mann-whitney U test assumes both groups are not normally distributed. So what test is next....
 

Karabiner

TS Contributor
#2
Mann-Whitney is a test for ranked data, normality considerations do not apply for this test. If n > 30, you could use t-test (Welch test).

With kind regards

Karabiner