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Model Based Analysis of the Variance Estimators for the Combined Ratio Estimator


Charles Wafula

Abstract

In this paper we study the variance estimators for the combined ratio estimator under an appropriate asymptotic framework. An alternative bias-robust variance estimator, different from that suggested by Valliant (1987), is derived. Several variance estimators are compared in an empirical study using a real population.

Journal of Agriculture, Science and Technology Vol.3(1) 2001: 23-33

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eISSN: 1561-7645