VERIFYING DATA HOMOGENEITY. APPLIED PROGRAM U TEST (MANN-WITNEY) FOR COMPARING TWO EMPIRICAL DISTRIBUTIONS
VERIFYING DATA HOMOGENEITY. APPLIED PROGRAM U TEST (MANN-WITNEY) FOR COMPARING TWO EMPIRICAL DISTRIBUTIONS

Summary/Abstract: In the practice of investigation, we sometimes encounter the situation of comparing two series of data (samples), or, in other words, appreciating if they have or do not have the same distribution – specified or not –, if they come from the same statistical population which represents them both or not. We will refer in the following at a test, U (Mann-Witney), which allows such a comparison, and in the end we will present a using program for this test.

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