All Questions
4
questions
0
votes
0
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240
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Whitney Mann U test vs Kolmogorov Smirnov for a highly skewed continuous variable
I would like to compare task time to completion distributions (measured in minutes) across two groups. The distributions are highly skewed (the means are 300 to 400 times larger than the medians) and ...
- 143
1
vote
1
answer
75
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Which nonparametric test should I use
I am currently doing an experiment to test whether there is a significant difference between test results of a control group of steel bars of good shape and another group of corroded steel bars. I do ...
- 603
1
vote
1
answer
796
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KS Test and Wilcoxon Rank Sum Test, large differences in p values
I am relatively new to non-parametric tests. I wrote the following R code to test 2 sample tests using the KS test and the Wilcoxon Rank Sum test. Drawing 2 samples of various sizes from unit Normal ...
- 11
4
votes
3
answers
21k
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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
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