critical region

[krit-i-kuhl ree-juhn]

noun

Statistics.

1. the rejection region for the null hypothesis in the testing of a hypothesis.

   The appropriate selection of a critical region is a fundamental problem in the development of permutation tests.

critical region

noun

1. that part of a statistical distribution in which the probability of a given hypothesis is less than the chosen significance level, so that the hypothesis would be rejected

Word History and Origins

Origin of critical region¹

First recorded in 1950–55