Some classes of modified ratio type  estimators in sample surveys

A. K. P. C.  Swain; Manjula  Das

doi:https://doi.org/10.59170/stattrans-2015-002

Some classes of modified ratio type estimators in sample surveys

A. K. P. C. Swain Former Professor of Statistics, Utkal University, Bhubaneswar-751004, India. , Manjula Das Associate Professor, Department of Mathematics, ITER, SOA University, Bhubaneswar-751030, India. Statistics in Transition new series, vol. 16, 2015, 1, pages: 37-52 Published online: 2 March 2015 https://doi.org/10.59170/stattrans-2015-002

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ABSTRACT

In this paper some classes of modified ratio type estimators with additive and multiplicative adjustments made to the simple mean per unit estimator and classical ratio estimator are suggested to obtain more efficient ratio type estimators compared to the classical one. Their biases and mean square errors are obtained and compared with first order approximations

KEYWORDS

ratio type estimator, simple random sampling, bias, mean square error, efficiency.

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