A note on ratio and product type estimators |
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Authors: | S K Ray Ashok Sahai Ajit Sahai |
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Institution: | (1) Lucknow University, Lucknow, India |
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Abstract: | Summary The use of ratio and product estimators for the mean of a finite population is well known. This paper proposes transformed
estimators obtained through parametric linear combination of the ratio, or product, and the usual unbiased estimator of the
mean for any sample design. To the first degree of approximation, the proposed estimators have smaller mean square error than
that of the ratio, product and the usual unbiased estimator, for suitable choice of the parameter. The superiority of the
proposed estimators over others for small samples has been studied empirically. |
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Keywords: | |
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