In this paper, classes of separate and combined regression-cum-ratio estimators have been
proposed for estimating the finite population mean in stratified random sampling. The …

In this paper, a transformed class of estimators has been developed for estimating the mean
of a finite population under two-phase sampling using two auxiliary variables. The …

In sample surveys, data (ie, statistical information) is collected on a fraction of the overall
population and inferences are made regarding the population parameters such as …

For estimating the mean of a finite population, a composite class of ratio type estimators is
formulated by considering a linear combination of the usual ratio estimator and the …