Efficient Family of Ratio-Type Estimators for Mean Estimation in Successive Sampling on two Occasions Using Auxiliary Information

Beevi Nazeema T. () and Chandran C.
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Beevi Nazeema T.: Department of Statistics, University of Calicut, Kerala, - 673 635, India

Statistics in Transition New Series, 2017, vol. 18, issue 2, 227-245

Abstract: In this paper, we proposed an efficient family of ratio-type estimators using one auxiliary variable for the estimation of the current population mean under successive sampling scheme. This family of estimators have been studied by Ray and Sahai (1980) under simple random sampling using one auxiliary variable for estimation of the population mean. Using these estimators in successive sampling, the expression for bias and mean squared error of the proposed estimators are obtained up to the first order of approximation. Usual ratio estimator is identified as a particular case of the suggested estimators. Optimum replacement strategy is also discussed. The proposed family of estimators at optimum condition is compared with the simple mean per unit estimator, Cochran (1977) estimator and existing other members of the family. Expressions of optimization are derived and results have been justified through numerical study interpretation.

Keywords: auxiliary information; bias; mean square error; optimum replacement (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:stintr:v:18:y:2017:i:2:p:227-245:n:4

DOI: 10.21307/stattrans-2016-068

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