Abstract

Invoking ratio and exponential ratio estimators for population variance, we have proposed three ratio-cum-exponential ratio estimators for estimating population variance. The estimators thus proposed are found to perform better than the competing estimators under conditions very likely to hold good in practice, as evidenced from the empirical investigations carried out in the paper. Analogous results are drawn when the study is extended to two-phase sampling.

Author: K. B. Panda and P. P. Mohanty

Received on: April, 2022

Accepted on: November, 2022