A FAMILY OF ESTIMATORS FOR POPULATION MEAN USING COEFFICIENTS OF VARIATION OF AUXILIARY AS WELL AS STUDY VARIATES AND THE CORRELATION COEFFICIENT BETWEEN STUDY AND AUXILIARY VARIATES

摘要

In this paper we have suggested a family of estimators of population mean using information on coefficient of variation of study and auxiliary variates and correlation coefficient between study and auxiliary variates. Expressions for bias and mean squared error have been obtained. An empirical study is carried out to demonstrate the performance of suggested estimator.