Abstract

The present paper deals with some two parameter modified ratio estimators for the estimation of finite population means with known skewness and correlation coefficient on two auxiliary variables. It has been shown that the proposed modified ratio estimators perform better than the simple random sampling without replacement (SRSWOR) sample mean and some of the existing ratio estimators for certain natural populations available in the literature.

Keywords

mean squared error, natural populations, percentage relative efficiency, simple random sampling, ams subject classification: 62DJO5