Penaksir Produk Yang Efisien Untuk Rata-Rata Populasi Pada Sampling Acak Sede…

ABSTRACT Product estimators of the population mean in simple random sampling and ranked set sampling that suggested are two product estimators using the auxiliary variable quartiles given by Al-Omari [International Journal of Human and Social Sciences., 4 (2009), pp. 1181-1185]. These estimators are biased estimators, so that the Mean Square Error is calculated for each estimators to obtai…