An Alternative Approach to Estimation of Population Mean in Two-Stage Sampling

Abstract

This paper considers the problem of estimating the population mean in two-stage sampling with unequal first stage unit (fsu) for ratio, product and regression estimators when the population mean of the auxiliary variable is not known in advance. The ratio, product and regression estimators are suggested and studied their properties. It is shown that under certain conditions the suggested estimators are more efficient than than Sukhatme et al (1984) estimators. Numerical illustration is given in support of present study.

Keywords: Auxiliary variate, study variate, mean squared error, two-stage sampling, ratio estimator, product estimator, regression estimator.