Improved Class of Ratio-type estimator for finite Population mean [ READ ]
Ran Vijay kumar Singh
In this paper, an improved class of Ratio type estimator has been proposed to estimate population mean of the characteristic under study. Particular cases of proposed estimator have been obtained which are improvement over existing estimator in literature and, thus, it serves as a unified study of several estimators. The expression for bias and mean square error of the proposed estimator including its particular cases have been derived up to the first order of approximation and compared Theoretically with the other improved ratio-type estimators and conditions found for which the proposed estimator is better than improved ratio-type estimators. An empirical study has also been carried out to demonstrate the efficiencies of proposed estimator.
Ran Vijay kumar Singh
In this paper, an improved class of Ratio type estimator has been proposed to estimate population mean of the characteristic under study. Particular cases of proposed estimator have been obtained which are improvement over existing estimator in literature and, thus, it serves as a unified study of several estimators. The expression for bias and mean square error of the proposed estimator including its particular cases have been derived up to the first order of approximation and compared Theoretically with the other improved ratio-type estimators and conditions found for which the proposed estimator is better than improved ratio-type estimators. An empirical study has also been carried out to demonstrate the efficiencies of proposed estimator.
