Efficient family of estimators of median using two-phase sampling design

H.S. Jhajj, Harpreet Kaur and Puneet Jhajj

Communications in Statistics - Theory and Methods, 2016, vol. 45, issue 15, 4325-4331

Abstract: For a trivariate distribution, an efficient family of estimators of median of study variable using the known information on the auxiliary variables has been proposed under two-phase sampling design. The expressions for bias and its mean square error have been obtained up to first order of approximation. It has been shown that the proposed estimator has smaller bias as compared to estimator defined by Singh et al. (2006) with the same efficiency. The results have also been illustrated numerically by taking data from different populations considered in literature.

Date: 2016
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DOI: 10.1080/03610926.2014.911912

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