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Constructing an unbiased estimator of population mean in finite populations using auxiliary information |
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| Authors: | Derrick S. Tracy Housila P. Singh Rajesh Singh |
| Affiliation: | (1) Department of Mathematics and Statistics, University of Windsor, Windsor, Ontario, Canada;(2) School of Studies in Statistics, Vikram University, Ujjain, M.P., India |
| Abstract: | The objective of this paper is to construct an unbiased estimator (up to order 0(1/n)) of the population mean  of the study variatey which is more efficient than the sample mean  of the ‘n’ obsrvedy-values. In particular, the unbiased estimators are discussed for the cases of positive and negative correlations of the study variatey and the auxiliary variatex. |
| Keywords: | Unbiased estimators finite population mean square error simple random sampling without replacement (SRSWOR) |
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