Contributing to Successive Sampling: Combined Estimator of the Population Ratio Type Ratio-Product

Amelia García & Eva Artés

 

 

Abstract

The problem of estimation of the population ratio for the current occasion based on the samples selected over two occasions has been considered. This estimator is obtained suitably combining two independent estimates of the population ratio. The expression for optimum estimator, his variance, the optimum matched proportion, the gain in efficiency have been computed. An empirical study is made to study the performance of the proposed strategy.

 

Keywords: Successive sampling, population ratio estimator, matching fraction, gain in efficiency.

 

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