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A study on the chain ratio-type estimator of finite population variance
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نویسنده
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olufadi y. ,kadilar c.
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منبع
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journal of probability and statistics - 2014 - دوره : 2014 - شماره : 0
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چکیده
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We suggest an estimator using two auxiliary variables for the estimation of the unknown population variance. the bias and the mean square error of the proposed estimator are obtained to the first order of approximations. in addition,the problem is extended to two-phase sampling scheme. after theoretical comparisons,as an illustration,a numerical comparison is carried out to examine the performance of the suggested estimator with several estimators. © 2014 yunusa olufadi and cem kadilar.
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آدرس
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department of statistics and mathematical sciences,kwara state university,pmb 1530,malete, Nigeria, department of statistics,hacettepe university,beytepe, Turkey
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Authors
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