本文在分层随机抽样下通过使用辅助变量的偏斜系数提出了几个总体均值的估计。从理论上比较了提出的新估计和经典分别比估计的均方误差。并且通过一个原始数据的实际应用例子验证了提出估计的有效性。
The paper proposes new separate ratio estimators for population mean using known skewness coefficient of auxiliary variable in stratified random sampling.We compare MSEs of new separate ratio estimators with traditional separate ratio estimators.The results are supported by an application with original data.