文章基本信息

标题：Improved classes of chain type estimators for ratio of two population means using two auxiliary characters in the presence of non-response
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作者：Brij Behari Khare ; Kamlesh Kumar ; Usha Srivastava 等
期刊名称：International Journal of Advanced Statistics and Probability
电子版ISSN：2307-9045
出版年度：2013
卷号：1
期号：3
页码：53-63
DOI：10.14419/ijasp.v1i3.870
出版社：Journal of Advanced Computer Science & Technology
摘要：In the case when the population mean of auxiliary character is not known but population mean of another additional auxiliary character is known, improved classes of chain type estimators for ratio of two population means of study characters in the presence of non-response have been proposed and their properties are studied. The proposed classes of chain type estimators have been found to be more efficient than the corresponding estimators in case of fixed sample sizes and also in case of the fixed cost. It is also found that the proposed classes of chain type estimators have less total cost in comparison to the cost incurred for the corresponding estimators in case of the specified variance. An empirical study has been given in support of the problem under investigation.