EFFICIENT FAMILIES OF RATIO AND PRODUCT-TYPE ESTIMATORS
成果类型：
Article
署名作者：
RAY, SK; SAHAI, A
刊物名称：
BIOMETRIKA
ISSN/ISSBN：
0006-3444
发表日期：
1980
页码：
211215
关键词：
摘要：
Two-parameter families of ratio-type and product-type estimators are proposed for a finite population mean based on simple random samples of observations on the variable of interest and a concomitant variable. The families contain estimators which have lower mean square error in practical situations than the usual ratio, product and sample mean estimators.