Some Improved Estimators in Double Sampling Using two Auxiliary Variables

Exact Sampling Using Auxiliary Variables

Some estimators for a finite population mean under two-stage sampling using multivariate auxiliary information

In this paper, we have derived difference, regression and predictor estimators for two-stage sampling with unequal first-stage units using multivariate auxiliary information. The mean square error of these estimators have been derived. A numerical illustration is given for finding the relative comparisons. 2003 Elsevier Inc. All rights reserved.

An Improved Suggestion in Stratified Random Sampling Using Two Auxiliary Variables

Some Improved Estimators of Population Mean Using Information on Two Auxiliary Attributes

Improved Exponential Estimator for Population Variance Using Two Auxiliary Variables

In this paper exponential ratio and exponential product type estimators using two auxiliary variables are proposed for estimating unknown population variance y S . Problem is extended to the case of two-phase sampling. Theoretical results are supported by an empirical study.