t-Test

Cancer Terms -> Activity -> Techniques -> Statistical Methods -> Statistical Test -> Parametric Test -> t-Test

t-Test Definition

A statistical hypothesis test based on a test statistic whose sampling distribution is a t-distribution. The term "t-test" is often used in a narrower sense: it refers to a popular test aimed at testing the hypothesis that the population mean is equal to some value m (see also t-statistic). The most popular t-tests are aimed at testing the following hypotheses: 1. The population mean is as hypothesized (the population variance is not known); 2. The means of two populations are equal (the population variances are not known but equal); 3. The means of two populations are equal (the population variances are not known and not equal); 4. The correlation coefficient for two random variables is zero; 5. The slope of the population regression line is zero.

t-Test Synonyms

t-Test, t-test

Terms in t-Test category

One Sample t-Test
Paired t-Test
Unpaired t-Test