In this paper, an unbiased regression-ratio type estimator has been developed for estimating the population mean using two auxiliary variables in double sampling. Its properties are studied under two different cases. Empirical studies and graphical simulation have been done to demonstrate the efficiency of the proposed estimator over other estimators.
Maji, Reba; Bandyopadhyay, Arnab; and Singh, G. N.
"Efficient and Unbiased Estimation Procedure of Population Mean in Two-Phase Sampling,"
Journal of Modern Applied Statistical Methods: Vol. 15
, Article 13.
Available at: http://digitalcommons.wayne.edu/jmasm/vol15/iss2/13