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Author
Tailor Rajesh (Vikram University, Ujjain, India), Sharma Balkishan (Sri Aurobindo Institute of Medical Sciences)
Title
Modified Estimators of Population Variance in Presence of Auxiliary Information
Source
Statistics in Transition, 2012, vol. 13, nr 1, s. 37-46, bibliogr. 15 poz.
Keyword
Badania empiryczne, Estymatory, Statystyka
Empirical researches, Estimators, Statistics
Note
summ.
Abstract
This paper proposes estimator of population variance using information on known parameters of auxiliary variable. The variances of the proposed estimators are obtained. It has been shown that using modified sampling fraction the proposed estimators are more efficient than the usual unbiased estimator of population variance and usual ratio estimator for population variance under certain given conditions. Empirical study is also carried out to demonstrate the merits of the proposed estimators of population variance over other estimators considered in this paper. (original abstract)
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The Library of Warsaw School of Economics
The Library of University of Economics in Katowice
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Bibliography
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ISSN
1234-7655
Language
eng
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