Population Mean Estimation With Sub Sampling The Non-Respondents Using Two Phase Sampling

Abstract

The problem of non-response in double (or two phase) sampling is dealt with combined ratio, product and regression estimators. Expressions of bias and MSE for these estimators are obtained. Comparisons of a proposed strategy with a usual unbiased estimator and other estimators are carried out and results obtained are illustrated numerically using an empirical sample. © 2014 JMASM, Inc.