Improved Separate Ratio Exponential Estimator for Population Mean Using Auxiliary Information
Improved Separate Ratio Exponential Estimator for Population Mean Using Auxiliary Information
Author(s): Rohini Yadav, Lakshmi N. Upadhyaya, Housila P. Singh, S. ChatterjeeSubject(s): Economy
Published by: Główny Urząd Statystyczny
Keywords: Study variable;auxiliary variable;stratified random sampling;separate ratio estimator;separate product estimator;bias and mean squared error
Summary/Abstract: This paper advocates the improved separate ratio exponential estimator for population mean of the study variable y using the information based on auxiliary variable x in stratified random sampling. The bias and mean squared error (MSE) of the suggested estimator have been obtained upto the first degree of approximation. The theoretical and numerical comparisons are carried out to show the efficiency of the suggested estimator over sample mean estimator, usual separate ratio and separate product estimator.
Journal: Statistics in Transition. New Series
- Issue Year: 12/2011
- Issue No: 2
- Page Range: 401-412
- Page Count: 12
- Language: English