An Ecient Class of Estimators of Population Mean in Two-Phase Sampling Using Two Auxiliary Variables
نویسندگان
چکیده
منابع مشابه
Improvement in Estimating Population Mean using Two Auxiliary Variables in Two-Phase Sampling
This study proposes improved chain-ratio type estimator for estimating population mean using some known values of population parameter(s) of the second auxiliary character. The proposed estimators have been compared with two-phase ratio estimator and some other chain ratio type estimators. The performances of the proposed estimators have been supported with a numerical illustration.
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Estimation of the Finite Population Mean in Two Phase Sampling When Auxiliary Variables Are Attributes
We consider the problem of estimating the finite population mean in two phase sampling when some information on auxiliary attributes is available. It is shown that the proposed estimator is more efficient than the usual mean estimator, the S. Bahl and R.K. Tuteja (Ratio and product type exponential estimators, Information and Optimization Sciences 12 (1), 159–163, 1991) estimator and a family o...
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We propose a new ratio estimator using two auxiliary variables in simple random sampling. We obtain mean square error (MSE) equation of this estimator and theoretically show that our proposed estimator is more efficient than the traditional multivariate ratio estimator under a defined condition. In addition, we support this theoretical result with the aid of a numerical example.
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ژورنال
عنوان ژورنال: Pakistan Journal of Statistics and Operation Research
سال: 2015
ISSN: 2220-5810,1816-2711
DOI: 10.18187/pjsor.v11i3.939