Rank tests

Rank tests are the most important methods of nonparametric statistics. In the introductory part, there are discussions of parametric and nonparametric metods and as a result of those discussions it is established that the rank tests are one of the most important methods of nonparametric methods. Then in the main part are described: the Mann Whitey U test, Kruskal Wallis and Freadman tests. Therefore, the procedure of the theatrical examination with the above tests are explained. Through the examples, a wide application of these tests has been demonstrated, especially in medicine, psychology, etc.