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On the efficiency of ratio estimator over the regression estimator |
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| Authors: | Etebong P Clement Ekaette I Enang |
| Institution: | 1. Department of Mathematics and Statistics, University of Uyo, Uyo, Nigeria;2. Department of Statistics, University of Calabar, Calabar, Nigeria |
| Abstract: | It is well known that the ratio and product estimators have the limitation of having efficiency not exceeding that of the linear regression estimator. This paper develops a new approach to ratio estimation that produces a more precise and efficient ratio estimator that is superior to the regression estimator both in efficiency and biasedness. An empirical study is given. |
| Keywords: | Calibration approach efficiency ratio estimator regression estimator stratified sampling |