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t-statistic (Graphical)

Home » Glossaries » t-statistic (Graphical)

t-statistic (Graphical)

t-statistic:

T-statistic is a statistic whose sampling distribution is a t-distribution.

Often, the term "t-statistic" is used in a narrower sense - as the standardized difference between a sample mean and a population mean Math image , where N is the sample size:

Math image

where Math image and Math image are the mean and the standard deviation of the sample.

See also: t-test

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