## 整群抽样理论与方法的探究

Cluster Sampling Theory And Method of Exploration
Abstract： Are mainly introduced in this paper, cluster sampling method, it is a more extensive sampling method. This article from the concept of cluster sampling is introduced first, and then introduces the pision of group, scale and design effect, and then describes the group of equals the size of all sorts of estimator and variance, finally introduced the group size equal probability under the simple estimation, weighted estimation and ratio estimation and its application instance.
Key words: The overall design; Part of the group; Sample parameter calculation method; Sampling estimation

1.整群抽样概述    2
1.1 整群抽样的含义    2
1.2整群抽样的特点    3
1.3整群抽样的选择原因    3
2.群的划分、规模及设计效应    3
2.1群的划分    3
2.2群的规模    4
2.3设计效应    4
3.群规模大小相等时的估计    4
3.1符号说明    5
3.2估计量及其方差    6
3.3整群抽样效率分析    7
3.4群规模大小相等时的应用实例    7
4.群规模不等时的估计    8 源￥自%六^^维*论-文+网=www.lwfree.cn
4.1等概抽样下的简单估计    8
4.2等概抽样下的加权估计    9
4.3等概抽样下的比率估计    9
4.4与群规模成比例不等概率抽样估计    10
4.5群规模大小不等时的应用实例    10
4.6总体比例的估计    ..........14
5.模型展望与结论    15

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