摘要：This paper presents a general family of dual to ratio-cum-product estimators of finite p opulation mean using information on two auxiliary variates. The bias and mean square error (MSE) of the proposed family are obtained to the first degree of approximation. The expression for minimum attainable MSE is also derived. The proposed family en- compasses a wide range of estimators of the sampling literature. E.ciency comparisons are made to demonstrate the performance of prop osed family over other existing esti- mators. An empirical study is also carried out in support of theoretical findings.
关键词：Auxiliary variate ; Study variate ; Bias ; Mean square error ; Dual
