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- Title
SOME MODIFIED CLASSES OF ESTIMATORS FOR POPULATION VARIANCE USING AUXILIARY ATTRIBUTE.
- Authors
Bhushan, Shashi; Kumar, Anoop; Kumar, Sumit; Singh, Saurabh
- Abstract
This study introduces some modified classes of estimators of population variance in simple random sampling utilizing information on auxiliary attribute which cover traditional mean, ratio and regression estimators and Kadilar and Cingi (2004) type estimators adapted by Singh and Malik (2014) for particular values of characterizing scalars. The expressions of bias and mean square error of the proposed classes of estimators are tabulated up to the first order of approximation. The proposed classes of estimators are theoretically compared with the contemporary estimators existing till date and the efficiency conditions are obtained. Subsequently, the theoretical results are numerically enhanced by using a real data set.
- Subjects
STATISTICAL sampling
- Publication
Pakistan Journal of Statistics, 2022, Vol 38, Issue 2, p235
- ISSN
1012-9367
- Publication type
Article