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A class of exponential ratio estimators of finite population mean using two auxiliary variables
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نویسنده
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sharma p. ,singh r.
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منبع
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pakistan journal of statistics and operation research - 2015 - دوره : 11 - شماره : 2 - صفحه:221 -229
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چکیده
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This paper proposes a class of estimators based on information of two auxiliary variables. the expressions of mean square errors of the proposed class of estimators are derived in a general form. it is shown that the proposed class of estimators is always more efficient than regression estimator based on two variable,estimators proposed by abu-dayeh (2003) and estimators recently proposed by and lu and yan (2014). in addition,we support this theoretical result by an empirical study using original data to show the superiority of the constructed estimators over others.
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کلیدواژه
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Auxiliary variable; Mean square error; Simple random sampling
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آدرس
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department of qt and rm,university of petroleum and energy studies, India, department of statistics,banaras hindu university, India
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Authors
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