Ratio- and difference-type estimators for estimating finite population variance |
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| Authors: | Amin Ghalamfarsa Mostofi |
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| Affiliation: | Department of Statistics, Shiraz University, Shiraz, Iran |
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| Abstract: | We consider the problem of estimating finite population variance of a study character when information on an auxiliary character is available. We define ratio- and difference-type estimators and obtain the mean-squared error of them approximately. Using a numerical study, we compare the performances of the proposed estimators with some existing variance estimators. |
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| Keywords: | Bias finite population variance mean-squared error ratio- and difference-type estimators study and auxiliary characters |
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