T-test : assumptions violation
Hello,
I'm conducting an independant t-test. However, equality of variances and normality distribution assumptions are violated.
I can use Welch t-test for equality of variances, and Mann-Whitney U test for normality. But, when both assumptions are violated, which t-test can I use ?
Thanks for your answers
PM
Comments
Hi PM,
Mann-Whitney is a rank-based test, so I believe its assumptions are very mild. See https://statistics.laerd.com/statistical-guides/mann-whitney-u-test-assumptions.php.
Cheers,
E.J.
Hello, Thank you for your answer !
Have a nice day.
Cheers
PM