Testing equality of ratios from two finite populations |
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| Authors: | David Otis David C Bowden |
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| Institution: | Denver Wildlife Research Center, U.S. Fish and Wildlife Service, Denver, CO, U.S.A.;Department of Statistics, Colorado State University, Fort Collins, CO, U.S.A. |
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| Abstract: | Approximations are given for the bias and variance of both the regression and ratio estimator when sampling from a finite population, and simulation results are given indicating the accuracy of the approximations and the bias of the estimated approximations. A different estimator for the variance of the regression estimator is recommended. Test procedures are proposed for testing the hypothesis of equality of ratios from two finite populations, the procedures depending upon the types of populations being sampled. Simulation results indicating the effectiveness of the test procedures in controlling their size are given. |
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| Keywords: | Ratio Estimator Regression Through Origin Variance Approximation Primary 62D05 Secondary 62E25 |
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