Efficient exponential ratio estimator for estimating the population mean in simple random sampling

Yıl 2015, Cilt: 44 Sayı: 3, 689 - 705, 01.06.2015

Emmanuel John Ekpenyong Ekaette İnyang Enang

Öz

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. 

Anahtar Kelimeler

Exponential ratio estimators, mean squared error, optimal conditions, efficiency, simple random sampling

Kaynakça

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