本文将分层技术与比估计技术相结合的方法应用于随机化调查中,主要对Warner模型中的敏感比例估计量的分别比估计问题进行讨论。通过比较,当满足一定的条件时,分别比估计的精度要优于分层抽样估计的精度。
In this paper,stratified sampling combined with ratio estimation procedure were applied to study randomized survey.Separate ratio estimator was used for estimating a sensitive proportion estimator of Warner model.It is shown that separate ratio estimator is more efficient than stratified sampling under a certain conditions.