Some improved estimators in multiphase sampling
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نویسنده
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hanif m. ,shahbaz m.q. ,ahmad z.
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منبع
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pakistan journal of statistics - 2010 - دوره : 26 - شماره : 1 - صفحه:195 -202
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چکیده
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Some improved estimators of population mean has been proposed in two phase and multiphase sampling using information on two and several auxiliary variables. the minimum variance of the proposed estimators has been obtained. comparison of the proposed estimators has been done with some available estimators of two phase sampling that utilizes information of two and several auxiliary variables. © 2010 pakistan journal of statistics.
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کلیدواژه
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Correlation coefficients; Optimum variance; Regression estimators; Two phase sampling
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آدرس
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lahore university of management sciences, Pakistan, department of mathematics,comsats institute of it, Pakistan, department of statistics,university of gujrat, Pakistan
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