An Alternative Estimator for the Population Mean In PPS Sampling

Anita, Shashi Bahl

Abstract: In this paper some composite estimators depending on estimated optimum value of a constant based on sample values under PPS sampling scheme have been proposed. The estimators are better in sense (minimum variance) than PPS estimator, ratio estimator or difference estimator under certain conditions.

Keywords: PPS estimator, Ratio estimator, Difference estimator