Ratio-Cum-Product Estimator Using Multiple Auxiliary Attributes in Two-Phase Sampling  

作　　者：John Kung’u Leo Odongo 

机构地区：[1]Department of Mathematics, Kenyatta University, Nairobi, Kenya

出　　处：《Open Journal of Statistics》2014年第4期246-257,共12页统计学期刊（英文）

摘　　要：In this paper, we have proposed three classes of ratio-cum-product estimators for estimating population mean of study variable for two-phase sampling using multi-auxiliary attributes for full information, partial information and no information cases. The expressions for mean square errors are derived. An empirical study is given to compare the performance of the estimator with the existing estimator that utilizes auxiliary attribute or multiple auxiliary attributes. The ratio-cum-product estimator in two-phase sampling for full information case has been found to be more efficient than existing estimators and also ratio-cum-product estimator in two-phase sampling for both partial and no information case. Finally, ratio-cum-product estimator in two-phase sampling for partial information case has been found to be more efficient than ratio-cum-product estimator in two-phase sampling for no information case.In this paper, we have proposed three classes of ratio-cum-product estimators for estimating population mean of study variable for two-phase sampling using multi-auxiliary attributes for full information, partial information and no information cases. The expressions for mean square errors are derived. An empirical study is given to compare the performance of the estimator with the existing estimator that utilizes auxiliary attribute or multiple auxiliary attributes. The ratio-cum-product estimator in two-phase sampling for full information case has been found to be more efficient than existing estimators and also ratio-cum-product estimator in two-phase sampling for both partial and no information case. Finally, ratio-cum-product estimator in two-phase sampling for partial information case has been found to be more efficient than ratio-cum-product estimator in two-phase sampling for no information case.

关 键 词：Ratio-Cum-Product ESTIMATOR MULTIPLE AUXILIARY Attributes Two-Phase Sampling and Bi-Serial Correlation Coefficient 

分 类 号：R73[医药卫生—肿瘤]