A Comparative Analysis of Some Almost Unbiased Modified Ratio Estimators for Population Mean with Known Population Parameters of the Auxiliary Variable.

Author : 1 Etaga Harrison O., 2 Nwosu Chinwe R and 3 Udechukwu Chiamaka U.

This Paper deals with a comparative analysis of some almost unbiased modified ratio estimators for population mean with known population parameters. Over the years a lot of modified estimators have been proposed using information from auxiliary variable that is highly related to the studied variable. We compared some of the estimators and studied their behaviors at varying sample sizes. It was observed that some of the estimators are distribution sensitive.

Affiliation :

Department of Statistics, Nnamdi Azikiwe University, P.M.B 5025 Awka. Anambra State, Nigeria


Corresponding Author: (etagaomavua@yahoo.com)

Keywords : Ratio estimator, Auxiliary information, Mean Square Error, Efficiency, Bias, Population Mean..
Date : Sunday ,01 ,March ,2015

Download Full Page



<<< Go Back

Related Journals