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t-test |
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t-test
any in a class of statistical tests used to find the difference between the means of either a sample and a population, two different sample groups, two matched samples, or the same sample at two different points in time.
t-test, n an inferential statistic used to test for differences between two means (groups) only. This statistic is used for small samples (e.g.,
N < 30). Also called t-ratio, stu-dent's t. t-test a test of statistical significance which uses a formula from which a t value is derived. The value is then compared with a set of t-distribution tables to see whether the null hypothesis should be rejected or not.
t-test Student's t-test, see there Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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