A Modified Approach for the Estimation of Population Mean

Abstract

This paper presents some modified estimators using Upadhyaya and Singh (1999) estimators. The bias and mean squared error of the suggested estimators are obtained up to the first degree of approximation.  It has been shown that under certain conditions suggested estimators are more efficient than simple mean estimator , usual ratio estimator  , and  estimators and    given by Upadhyaya and Singh (1999). An empirical study has been carried out to demonstrate the performance of the suggested estimators.