STUDENT'S T Definition & Meaning

Student's t

noun

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

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�y��vlog History and Origins

Origin of Student's t¹

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

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Example Sentences

The cortex was outlined, and the numbers of amyloid plaques per mm2 of the cortex were manually counted by an observer blinded to treatment. 7-month-old vehicle-treated = 26.8 ± 4.2 plaques; 7-month-old bexarotene-treated = 19 ± 5.6; 11-month vehicle-treated = 54.8 ± 7.3; 11-month bexarotene-treated = 59.3 ± 7.7; error bars, mean ± SEM; no statistical significance between the groups by Student’s t test.

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