Improved ratio estimator under simple and stratified random sampling

This article deals with an exponential ratio type estimator for estimating the finite population mean utilizing known population median of the study variable as an auxiliary information under simple and stratified random sampling. The bias and mean squared error (MSE) of the proposed estimators are derived up to the first order of approximation. A theoretical and numerical comparisons have been made with the mentioned existing estimators. We found that the proposed estimator performed better for both the simple and stratified random sampling.