- Hacettepe Journal of Mathematics and Statistics
- Vol: 44 Issue: 3
- Efficient exponential ratio estimator for estimating the population mean in simple random sampling
Efficient exponential ratio estimator for estimating the population mean in simple random sampling
Authors : Emmanuel John Ekpenyong, Ekaette Inyang Enang
Pages : 689-705
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Publication Date : 2015-06-01
Article Type : Research
Abstract :This paper proposes, with justification, two exponential ratio estimators of population mean in simple random sampling without replacement. Their biases and mean squared error are derived and compared with existing related ratio estimators. Analytical and numerical results show that at optimal conditions, the proposed ratio estimators are always more efficient than the regression estimator and some existing estimators under review.Keywords : Exponential ratio estimators, mean squared error, optimal conditions, efficiency, simple random sampling