The Sign Test (Nonparametric Tests) to test a population median. Paired-sample sign test, Statistics

Use the sign test to test a population median Use the paired-sample sign test to test the difference between two population medians (dependent samples) The sign test is a nonparametric test that can be used to test either a claim involving matched pairs of sample data, a claim involving nominal data with two categories, or a claim about the population median against a hypothesized value k.