Variance Estimation for the Regression Estimator of the Mean inStratified Sampling

摘要

In this paper, we propose a class of estimators for variance of separate regression estimator of mean in stratified sampling and derive its properties under large sample approximation. The proposed class of estimators performs better than the traditional regression estimator and the Wu (1985) estimator. Mean square errors of different estimators are compared numerically also using three different data sets from the literature.