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1 vote
0 answers
41 views

Prove the relation between two distribution functions

I have been given a homework in a subject called "Non-Parametric Statistics" and I'm a bit stuck with it. I would be very thankful if you could give me any advice or help, which would lead to a ...
Martin Smith's user avatar
4 votes
3 answers
21k views

Testing if two non-normal distributions are significantly different (K-S or Wilcoxon or both?)

The Big Question I'm trying to decide between K-S and Wilcoxon (or something I haven't thought of yet) for two data sets I want to prove are significantly/insignificantly different from one another "...
Joseph Szymborski's user avatar
3 votes
1 answer
4k views

Kruskal-Wallis Test and Mann-Whitney U Test

I have a three samples of data where each has a non-normal distribution: I want to determine whether the samples differ. Therefore I apply the KW test and it gives me a significant value, i.e. the ...
Mark Ramotowski's user avatar
8 votes
1 answer
166 views

How to test that a set of distributions are located in a given order?

I have a set of population distributions; I obtained them empirically, computing histograms from very large populations (about 1 million per distribution). The population distributions might not have ...
Dr Fabio Gori's user avatar
8 votes
2 answers
2k views

The exact distribution of Wilcoxon rank-sum statistic U

The distribition of the rank-sum statistic U is assumed to be normal for large number of samples being considered. What is the exact distribution? I want to compare and sometimes fuse results from ...
highBandWidth's user avatar