Estimation of population mean using two auxiliary sources in sample surveys

Sharad Pathak (), Diwakar Shukla () and Narendra Singh Thakur

Statistics in Transition new series, 2012, vol. 13, issue 1, 21-36

Abstract: This paper proposes families for estimation of population mean of the main variable under study using the information on two different auxiliary variables under simple random sampling without replacement (SRSWOR) scheme. Three different classes of estimators are constructed, examined with a complete study with other existing estimators. The expression for bias and mean squared error of the proposed families are obtained up to first order of approximation. Usual ratio estimator, product estimator, dual to ratio estimator, ratio-cum-product type estimator and many more estimators are identified as particular members of the suggested family. Expressions of optimization are derived and theoretical results are supported by numerical examples.

Keywords: Family of estimators; SRSWOR; Bias and Mean squared error (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:csb:stintr:v:13:y:2012:i:1:p:21-36

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