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st: RE: non-parametric tests
By correct, I guess you mean that e.g. computed P-values
are reliable. The answer is No. The Mann-Whitney
test depends on mutual independence. See for example
Box, Hunter and Hunter: Statistics for experimenters
> I have a question for you. I'm comparing the data from two
> independent samples and I'm running the Mann-Whitney test.
> However, the observations are independent between the samples
> but not within the same sample. Is the Mann-Whitney test
> still correct?
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