MODIFIED CLASS OF RATIO ESTIMATORS FOR POPULATION MEAN

摘要

The present study was taken into consideration to, propose some new modified ratio type estimators for finite population mean in simple random sampling using the auxiliary information of correlation coefficient, median and deciles of the auxiliary variable. The properties associated with the propqsed estimators are assessed by mean square error and bias and compared with the existing estimators. By this comparison we conclude that our proposed estimators are more efficient than the existing estimators as their mean square error as well as bias are too much lower than the existing estimators. Theoretical as well as numerical illustration are given to support findings of the study.