SEARCH WITHIN CONTENT
Nazeema T. Beevi * / C. Chandran
Citation Information : Statistics in Transition New Series. Volume 18, Issue 2, Pages 227-245, DOI: https://doi.org/10.21307/stattrans-2016-068
License : (CC BY 4.0)
Published Online: 24-August-2017
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.
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