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Improvement in Estimating Population Mean using Two Auxiliary Variables in Two-Phase Sampling

by Nirmala Sawan , Pankaj Chauhan , Rajesh Singh

📖 The Scoop

This study proposes improved chain-ratio type estimator for estimating population mean using some known values of population parameter(s) of the second auxiliary character. The proposed estimators have been compared with two-phase ratio estimator and some other chain ratio type estimators. The performances of the proposed estimators have been supported with a numerical illustration. 

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