ESTIMATION OF POPULATION MEAN USING TWO AUXILIARY VARIABLES IN STRATIFIED RANDOM SAMPLING

Madhulika  Mishra; B. P.  Singh; Rajesh  Singh

Madhulika Mishra Department of Statistics, Banaras Hindu University, Varanasi, India
B. P. Singh Department of Statistics, Banaras Hindu University, Varanasi, India
Rajesh Singh Department of Statistics, Banaras Hindu University, Varanasi, India

Keywords: Study Variable, Auxiliary Variables, Stratified Random Sampling, Mean Squared Error, Efficiency, Bias

Abstract

This article discusses the problem of estimation of population mean in stratified sampling using information on two auxiliary variables. The expressions for the mean square error of the proposed estimator have been derived up to the first order of approximation and are compared with the existing estimators. Also, an empirical study has been carried out in order to show that the proposed estimator turns out to be more efficient than the existing estimators and for this we have considered real data sets.

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