t-test

American  

[tee-test] / ˈtiˌtɛst /

Or t test

noun

Statistics.

1. a test for determining whether or not the mean of an observed sample differs significantly from the mean of another sample or of a hypothetical normal population.

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Etymology

Origin of t-test

First recorded in 1930–35; see origin at Student's t distribution ( def. )

Example Sentences

See Examples For:

t-test

The finding about reduced authoritarianism barely met the threshold of significance –– and with a one-tailed t-test.

From Scientific American ● Nov. 5, 2020

To test the null hypothesis, H0: ρ = hypothesized value, use a linear regression t-test.

From Textbooks ● Mar. 27, 2020

We have concluded that this is a t-test on the basis of the sample size and that we are interested in a population mean.

From Textbooks ● Nov. 29, 2017

A hundred years later, when researchers such as Lenhart study online behaviour, the t-test offers guidance on how many people to survey for representative knowledge about the entire population.

From The Guardian ● Apr. 18, 2016

Student’s t-test was performed on homoscedastic populations and Student’s -test with Welch correction was applied on samples with different variances.

From Nature ● Apr. 4, 2014