Which of the following non parametric tests is appropriate for testing the equality of population medians for two or more population?
Which of the following non parametric tests is appropriate for testing the equality of population medians for two or more population?
The Kruskal-Wallis test is the appropriate non-parametric test for testing the equality of population medians for two or more populations. The Mann-Whitney test is used for comparing the medians of two populations, but it is not suitable for more than two populations. The Friedman test is used to detect differences in treatments across multiple test attempts, and the Runs test is used to test the randomness of data sequences.
Technique to remember the answer: "M" for median and "M" for Mann-Whitney. Testing the equality of population medians. Mann-Whitney Test