ON SOME IMPROVED ESTIMATOR FOR ESTIMATION OF POPULATION VARIANCE USING AUXILIARY INFORMATION
Peeyush Misra and Manish Kumar*
Department of Statistics, D.A.V. (P.G.) College, Dehradun – 248001, Uttarakhand (India) dr.pmisra.dav@gmail.com and kumarmann03@gmailcom
Abstract: The purpose of this paper is to use auxiliary data to estimate the population variance of the study variable. A estimator for estimating population variance has been proposed to the first order of approximation and bias and mean squared error are produced. The efficiency of the suggested estimator is proven to be higher than that of the usual unbiased estimator. The present study is supported by an empirical study also.
Keywords: Auxiliary Information, Coefficient of Variation, Bias, Mean Squared Error.