A Comparison of Two Tests for Equality of Two Proportions |
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| Authors: | Keith R Eberhardt Michael A Fligner |
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| Institution: | Department of Statistics , The Ohio State University , Columbus , OH , 43210 , USA |
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| Abstract: | Two procedures for testing equality of two proportions are compared in terms of asymptotic efficiency. The comparison favors use of a statistic equivalent to Goodman's Y 2 over the usual X 2 statistic in some cases including that of equal sample sizes. Numerical comparisons indicate that the asymptotic results have some relevance for moderate sample sizes. |
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| Keywords: | Chi-square test Proportion Bahadur efficiency Contingency tables Goodman's Y 2 |
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