Sequential t test in R

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This script implements Abraham Wald's (147) *Sequential Probability Ratio Test* for the test of a normal mean (difference) with unknown variance in R. The script implements the sequential *t* tests developed by Rushton (1950, 1952), commonly referred to as *Barnard's t test*, and Hajnal (1961). It contains R code to perform - one- or two-sided *t* tests with - one, two paired, or two independent samples.

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