期刊名称：Pakistan Journal of Statistics and Operation Research
印刷版ISSN：2220-5810
出版年度：2019
卷号：15
期号：4
页码：1037-1050
DOI：10.18187/pjsor.v15i4.1600
出版社：College of Statistical and Actuarial Sciences
摘要：In this paper we attempt the problem of estimation of the sum of mean and the change of mean in mail surveys. This problem is conducted for current occasion in the context of cluster sampling over sampling on two successive occasions. The sampling units are clusters and the observations on the first occasion are regarded as ancillary information for the observations on the second or current occasion. The results obtained are demonstrated with the help of an empirical study, which reveals that under certain condition, the cluster sampling on two occasions is more efficient than the simple randomsampling on two occasions.
关键词：Successive sampling; Cluster sampling; Sum of population mean; Change
of population mean; Efficiency.
其他关键词：Successive sampling;Cluster sampling;Sum of population mean;Change of population mean;Efficiency
