PPS整群抽样下的比估计量

The Ratio Estimator in View of The PPS Cluster Sampling

本文研究有辅助指标的ＰＰＳ整群抽样，构造了总体均值和总值的ＰＰＳ比估计量，证明ＰＰＳ比估计量是可用的，给出ＰＰＳ比估计量优于ＰＰＳ估计量的条件并讨论其优良性．

In this paper, we research the PPS cluster sampling with auxiliary target, construct the PPS ratio estimators of population mean and population total, prove that the PPS ratio estimators are feasible and give the condition that the PPS ratio estimator is superior to PPS estimator.