期刊名称：Pakistan Journal of Statistics and Operation Research
印刷版ISSN：2220-5810
出版年度：2012
卷号：8
期号：1
页码：55-63
DOI：10.1234/pjsor.v8i1.175
语种：English
出版社：College of Statistical and Actuarial Sciences
摘要：This article suggests a model-assisted variance estimator for the ordinary ratio estimator under the Midzuno-Sen sampling scheme. To compare the suggested estimator empirically with available estimators a Monte Carlo comparison is carried out using real populations. The suggested estimator has performed very well and has taken non-negative values with probability 1.
