EXAMPLES OF DIFFERING WEIGHTED AND UNWEIGHTED ESTIMATES FROM A SAMPLE SURVEY

被引：142
|
作者：
KORN, EL [1 ]
GRAUBARD, BI [1 ]
机构：
[1] NCI,BIOMETRY BRANCH,BETHESDA,MD 20892
来源：
AMERICAN STATISTICIAN | 1995年 / 49卷 / 03期
关键词：
BIAS; INTERACTION; SAMPLING WEIGHTS; STRATIFICATION;
D O I：
10.2307/2684203
中图分类号：
O21 [概率论与数理统计]; C8 [统计学];
学科分类号：
020208 ; 070103 ; 0714 ;
摘要：
Unweighted estimators using data collected in a sample survey can be badly biased, whereas weighted estimators are approximately unbiased for population parameters. We present four examples using data from the 1988 National Maternal and Infant Health Survey to demonstrate that weighted and unweighted estimators can be quite different, and to show the underlying causes of such differences.
引用
收藏
页码：291 / 295
页数：5
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