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On the estimation of ratio and product of two finite population means. (English) Zbl 0695.62005

Summary: Estimators for estimating ratio and product of two finite population means using supplementary information on an auxiliary character are reported. The expressions for mean squared errors are derived to the first degree of approximation. It is shown that the proposed estimators are preferable to those of others.

MSC:

62D05 Sampling theory, sample surveys