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Improved Estimators of Population Mean Using Two Auxiliary Variables in Stratified random Sampling

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Author(s): Rajesh Singh | Mukesh Kumar

Journal: Pakistan Journal of Statistics and Operation Research
ISSN 1816-2711

Volume: 8;
Issue: 1;
Date: 2012;
Original page

Keywords: Auxiliary information | Study variate | Stratified random sampling | Mean square error | Exponential estimator.

ABSTRACT
An exponential family of estimators, which use the information of two auxiliary variables in the stratified sampling, is proposed to estimate the population mean of the variable under study. The mean-squared error of the suggested family of estimators are derived under large sample approximation. The family of estimators in its optimum case is carried out to show the properties of the proposed estimators.
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