Affiliations: Department of Mathematics and Statistics, COBS, CCS HAU, Hisar, Haryana, India
Correspondence:
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Corresponding author: Alisha Mittal, Department of Mathematics and Statistics, COBS, CCS HAU, Hisar 125004, Haryana, India. E-mail: alishamittal602@hau.ac.in.
Abstract: In this paper, an attempt has been made to study the estimation of finite population variance in simple random sampling without replacement (SRSWOR) in presence of non-response by proposing two estimators. The two estimators (dual to ratio and ratio cum dual to ratio type) have been proposed on the basis of availability and non-availability of auxiliary information. The properties such as bias and mean square error of the proposed estimators have also been studied up to first order of approximation. The proposed estimators are compared with some existing estimators and are also mutually compared. An empirical study, based on both vegetable crop data and simulated data, has been performed to find out the best estimator. It has been seen that out of the two proposed estimators, the ratio cum dual to ratio type estimator performed better than dual to ratio estimator.
