Polish Statistical Association
Central Statistical Office of Poland
Subject: Economics, Statistics & Probability
ISSN: 1234-7655
eISSN: 2450-0291
SEARCH WITHIN CONTENT
Housila P. Singh / Surya K. Pal *
Keywords : Auxiliary variable, Study variable, Bias, Mean squared error, Efficiency comparison.
Citation Information : Statistics in Transition New Series. Volume 17, Issue 4, Pages 605-630, DOI: https://doi.org/10.21307/stattrans-2016-043
License : (CC BY 4.0)
Published Online: 06-July-2017
This paper proposes a family of estimators of population variance 2 y S of the study variable y in the presence of known population variance 2 x S of the auxiliary variable x. It is identified that in addition to many, the recently proposed classes of estimators due to Sharma and Singh (2014) and Singh and Pal (2016) are members of the proposed family of estimators. Asymptotic expressions of bias and mean squared error (MSE) of the suggested family of estimators have been obtained. Asymptotic optimum estimator (AOE) in the family of estimators is identified. Some subclasses of estimators of the proposed family of estimators have been identified along with their properties. We have also given the theoretical comparisons among the estimators discussed in this paper. ASM Classification: 62D05.