EXPONENTIAL-TYPE CALIBRATION ESTIMATORS OF FINITE POPULATION MEAN IN STRATIFIED SAMPLING.

This paper considers exponential ratio-type calibration estimators for finite population mean using median of the auxiliary variable in the calibration constraint under stratified random sampling. For judging the performance of the proposed estimators, a simulation study has been carried out on real as well as artificial datasets using R-software and their percentage root mean squared errors have been computed. The suggested estimators have been compared with the estimators given by Singh (2003) and Tracy et al. (2003). [ABSTRACT FROM AUTHOR]