# Student's t

- a statistic often used to test the hypothesis that a random sample of normally distributed observations has a given mean, μ; given by t = (̄x– μ) √n/s where ̄x is the mean of the sample, s is its standard deviation, and n is the size of the sample

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## Word Origin

after Student, the pen name of W. S. Gosset (1876–1937), English statistician and research scientist

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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