Some Improved Ratio Estimators for Estimating Mean of Finite Population

Research & Reviews: Journal of Statistics and Mathematical Sciences

article

Muhammad Ijaz¹  Hameed Ali² 

[1] Department of Statistics, University Of Peshawar;Department of Statistics, Islamia College Peshawar

关键词: Auxiliary information;    Study variable;    Bias;    MSE;    Percentage relative efficiency;   

来源: Research & Reviews

【 摘 要 】

In this paper we have proposed an efficient estimator for estimating the mean of finite population under simple random sampling schemes. We have proposed a modified ratio estimator whose efficiency is the same as of regression estimator. It is a well establish fact that linear regression estimator is more efficient than most of the ratio estimators. We have found the Bias and MSE up to first order of approximation. The conditions under which the proposed estimators perform well as compared to other estimators. These properties are supported by real data sets.

【 授权许可】

Unknown