摘要
本文指出并改正了[1]中第十二章关于双重抽样的不正确的结论。给出了关于双重抽样的一些结论的严格证明。
In this paper, author points out and improves the mistakes on the double sampl- ing in [1], and gives strict proof of some conclusions on the double sampling.
关键词
抽样理论
样本调查
无偏估计
方差
sampling theory
sample surveys
unbiased estimate
variance
