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Multiple comparisons process using Kruskal-Wallis, G-Test and corrections
I want to know if changing a button color has a positive effect on different measures (see the 4 measures below), using the following process:
There's a default button, which is the fixed control ...
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Why does one get a 0.000 Mann-Whitney U value (not p-value) etc.?
1) Is it okay to run a Mann-Whitney U test on unequal sample sizes i.e. two groups (N=11, N=12)or is there an alternative test?
2) What does it mean when one obtains a zero value for a Mann-Whitney U ...
