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ShawnSaviro4918
04.08.2021 •
Mathematics
The statistics (U or U') used in the Mann-Whitney U test, measure . Group of answer choices the separation between the two groups the direction of the differences between pairs of scores the power of the experiment the differences between the means of the two groups
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Ответ:
Statistics U or U' in the Mann-Whitney U test, measure the differences between the means of the two groups
In a test with two groups, the smaller value between the statistics U and U' points to the research hypothesis, while the larger value points to the alternative hypothesis.
The formula to calculate U and U' is:
Take, for instance;
The values of U and U' in a test where the research hypothesis of two populations are not equal are:
Recall that, the smallest of the 2 value supports the research hypothesis.
This means that
shows that the difference in the population is 0.
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