# Mann-Whitney test

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## Mann-Whitney test

A statistical test of the probability that two independent sets of observations come from the same population. The Mann-Whitney test is independent of distribution and can be used when the t test is inappropriate.

## Mann,

Henry Berthold, U.S. mathematician, 1905–.
Mann-Whitney test - rank sum test.

## Whitney,

Donald Ransom, U.S. statistician, 1915–.
Mann-Whitney test - see under Mann, Henry Berthold
References in periodicals archive ?
The Mann-Whitney test demonstrated that only the totals produced by Scenarios 3 and 5 could be considered statistically equal.
Table 4 Mann-Whitney Test Results Mann-Whitney- Operational Risks Operational Cash Leverage Size test Disclosure Flow Z Value 1.
We used management of Operations Science (MGMT 3106) class at Albany State University as our study group and compared the grades obtained by the students for quizzes, assignments, and tests using the Mann-Whitney test (Wilcoxon rank-sum test) method.
According to Table 1, the Mann-Whitney test indicated that there was no significant difference between the experimental-[group.
Table 3 shows the results from the Mann-Whitney test comparing knowledge measures of girls and boys in the three track and field events and in the total of scores of the three events at the two assessment moments (PreT and PosT).
The Kruskal-Wallis test is similar to the Analysis of Variance (or ANOVA) and the Mann-Whitney test is similar to the t-test.
Since our data did not meet this assumption, we used the Mann-Whitney test (also known as the Wilcoxon rank-sum test) to determine whether there were performance differences between the contract types.
A Mann-Whitney test was then carried out to examine whether or not the BOADICEA and Manchester prediction models were useful in this founder population.
Here, the Mann-Whitney test will be used to verify if samples from two different locations are mutually equal or not.

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