Warner模型中方差估计的分层抽样方法  

Variance estimation of stratified sampling method in Warner model

作　　者：赵馨[1] 闫在在[1] 魏福红[1] 

机构地区：[1]内蒙古科技大学数理与生物工程学院,内蒙古包头014010

出　　处：《内蒙古科技大学学报》2011年第3期282-285,共4页Journal of Inner Mongolia University of Science and Technology

摘　　要：在我国社会经济统计中,经常会用到分层抽样,这是因为在一些实际问题中,"层"常按照调查对象的不同类型而划分.将方差估计中的随机组方法运用到分届抽样中,估计了Warner模型估计量的方差.Stratified sampling is often used in our social and economic statistics because the ＂layer＂ is often classified according to the survey＇s types in a number of practical problems.The random group method was used for the stratified sampling in variance estimation,and the variance estimation in Warner model was obtained.

关 键 词：方差估计 分层抽样 随机组方法 

分 类 号：O212.4[理学—概率论与数理统计]