student ttest

Student's t-test

[tee-test]
noun Statistics.
a test for determining whether or not an observed sample mean differs significantly from a hypothetical normal population mean.

Origin:
1945–50; see Student's t distribution

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
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