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Technometrics Volume 25, 1983 - Issue 1
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Original Articles

A Simple Approximation for the Percentiles of the t Distribution

Kenneth J. Koehler Department of Statistics, Iowa State University, Ames, IA, 50011
Pages 103-105 | Published online: 23 Mar 2012
 
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Abstract

Data-analytic techniques are used in the construction of a simple approximation for the percentiles of the t distribution. The approximation is a direct function of the degrees of freedom and the tail probability. It is easily evaluated with a pocket calculator and should provide sufficient accuracy for most applications.

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