1971•Journal of the American Statistical AssociationRequires access
The Partial Sequential Probability Ratio Test
Campbell B. Read
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Abstract
In testing a normal mean with known variance, or a Koopman-Darmois parameter, an initial fixed number n of observations is followed by Wald's SPRT procedure. The conditional SPRT, given, and optimality properties in a certain class of tests are noted. For some parameter values, the PSPRT may have a lower ASN than a Wald SPRT with the same error probabilities.