Multivariate Ratio Estimation With Known Population Proportion Of Two Auxiliary Characters For Finite Population

Authors: Rajesh Singh, Sachin Malik, A. A. Adewara, Florentin Smarandache

In the present study, we propose estimators based on geometric and harmonic mean for estimating population mean using information on two auxiliary attributes in simple random sampling. We have shown that, when we have multi-auxiliary attributes, estimators based on geometric mean and harmonic mean are less biased than Olkin (1958), Naik and Gupta (1996) and Singh (1967) type- estimator under certain conditions. However, the MSE of Olkin( 1958) estimator and geometric and harmonic estimators are same up to the first order of approximation.

Comments: 8 Pages.

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[v1] 2012-04-18 09:37:00

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