Definition: One-tailed and two-tailed test
Index: The Book of Statistical Proofs ▷ General Theorems ▷ Frequentist statistics ▷ Hypothesis testing ▷ One-tailed vs. two-tailed
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Metadata: ID: D139 | shortcut: test-tail | author: JoramSoch | date: 2021-03-31, 09:32.
Definition: Let there be a statistical test of an alternative hypothesis $H_1$ against a null hypothesis $H_0$. Then,
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the test is called a one-tailed test, if $H_1$ is a one-tailed hypothesis;
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the test is called a two-tailed test, if $H_1$ is a two-tailed hypothesis.
The fact whether a test is one-tailed or two-tailed has consequences for the computation of critical value and p-value.
- Wikipedia (2021): "One- and two-tailed tests"; in: Wikipedia, the free encyclopedia, retrieved on 2021-03-31; URL: https://en.wikipedia.org/wiki/One-_and_two-tailed_tests.
Metadata: ID: D139 | shortcut: test-tail | author: JoramSoch | date: 2021-03-31, 09:32.