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Autor
Singh Housila P. (Vikram University, Ujjain, India), Upadhyaya Lakshmi N. (Indian School of Mines, Dhanbad, Jharkhand, India), Chandra Prem (Ventiv Clinical, GlaxoSmithKline (GSK), India)
Tytuł
An Improved Version of Regression Ratio Estimator with Two Auxiliary Variables in Sample Surveys
Źródło
Statistics in Transition, 2009, vol. 10, nr 1, s. 85-100, bibliogr. s. 97-100
Słowa kluczowe
Estymatory, Estymacja
Estimators, Estimation
Uwagi
summ.
Abstrakt
This paper considers a family of estimators of population mean Ӯ of the variable y under study using information on two auxiliary variables x and z under simple random sampling without replacement (SRSWOR) scheme. The expressions for bias and mean-squared error of the proposed family of estimators are obtained up to the first degree of approximation. In addition to many, Mohanty (1967), Khare and Srivastava (1981) and Upadhyaya and Singh (1984) estimators are identified as particular members of the suggested family. Asymptotic optimum estimator (AOE) in the family is identified with its approximate mean-squared error expression. (original abstract)
Dostępne w
Biblioteka Główna Uniwersytetu Ekonomicznego w Krakowie
Biblioteka Główna Uniwersytetu Ekonomicznego w Katowicach
Biblioteka Główna Uniwersytetu Ekonomicznego w Poznaniu
Biblioteka Główna Uniwersytetu Ekonomicznego we Wrocławiu
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Bibliografia
Pokaż
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ISSN
1234-7655
Język
eng
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