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A Note on RAO's Inclusion Probability Proportional to size Sampling Scheme |
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| Authors: | S K Agarwal Pranesh Kumar |
| Abstract: | A sufficient condition that the variance of HORVITZ -THOMPSON estimator for RAO 's (1965) inclusion probability proportional to sizes sampling scheme of selecting two units is uniformly smaller than that of RAO , HARTLEY and COCHRAN (1962) estimator has been obtained. |
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