R - Mann-Whitney U test - Wilcoxon rank sum test
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7 жыл бұрынR script download: rstatisticsandresearch.weebly....
Real-life example
Assumptions
Output interpretation
@wje6746 7 жыл бұрын
Again very useful. Thanks
@taz24787 4 жыл бұрын
Awesomely useful, thanks!
@iPanxy 4 жыл бұрын
I appreciated this!
@harrystamatopoulos687 6 жыл бұрын
Really useful! Thank you!
@x7331x 3 жыл бұрын
Great video, and great channel in general! Congratulations! One question though: how can we calculate the ES for this test? Everything I search shows how to do it using parametric tests. Thank you in advance!
@Asceticyogi 6 жыл бұрын
Sir, if we don't use boxplot then how can we find that males are longer than female using Mann-Whitney U test...?
@brazilfootball 4 жыл бұрын
I thought if you were measuring the same bird again that would be Mann Whitney U test, no? Wilcoxon test is when they are independent.
@RStatisticsandResearch 3 жыл бұрын
Mann Whitney U test (or Wilcoxon rank sum test) is used for independent groups, as in the example. You are probably referring to Wilcoxon signed-rank test, which is for dependent observations.
@bmgriffinful 6 жыл бұрын
what if the length of your groups were different? let say there were twice as many females as males? how would you account for this?
@RStatisticsandResearch 6 жыл бұрын
Although ideal, equal sample size is not a prerequisite for this test, so no need to correct for it
@nav1chm 6 жыл бұрын
can you please provide the link to download the dataset
@RStatisticsandResearch 6 жыл бұрын
Script and dataset can be found here: rstatisticsandresearch.weebly.com/mann-whitney-u-test.html
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R demo | Mann-Whitney U Test = Wilcoxon Rank Sum Test | How to conduct, visualise, interpret & more😉
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