
Accession Number : ADA018710
Title : A Nonrandomized Unconditional Test for Comparing Two Proportions.
Descriptive Note : Technical rept.,
Corporate Author : WYOMING UNIV LARAMIE STATISTICS LAB
Personal Author(s) : McDonald,Lyman L. ; Davis,Bruce ; Milliken,George A.
Report Date : OCT 1975
Pagination or Media Count : 67
Abstract : It is shown that the 'usual' nonrandomized, conditional test for comparing proportions using independent binomial samples, is very conservative in the sense that the actual significance level attributable to an outcome is often onefourth to onehalf of the anticipated value. A nonrandomized unconditional test is proposed, and for sample sizes up to 20, tables are given which specify onesided critical regions of size less than or equal to the nominal values 0.10, 0.05, 0.025, 0.01, and 0.005 (twosided critical regions are also given). Numerical examples illustrating the use of the tables are included.
Descriptors : *Sampling, *Distribution functions, *Statistical tests, Stochastic processes, Hypergeometric functions, Tables(Data), Comparison
Subject Categories : Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE