Efficient Use of Auxiliary Variables in Estimating Finite Population Variance in Two-Phase Sampling
نویسندگان
چکیده
منابع مشابه
Efficient Use of Auxiliary Variables in Estimating Finite Population Variance in Two Phase Sampling
This paper presents some chain ratio-type estimators for estimating finite population variance using two auxiliary variables in two phase sampling set up. The expressions for biases and mean squared errors of the suggested classes of estimators are given. Asymptotic optimum estimators (AOE’s) in each class are identified with their approximate mean squared error formulae. The theoretical and em...
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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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In sample surveys, we always deal with two types of errors: Sampling error and non-sampling error. One of the most common non-sampling errors is nonresponse. This error happens when some sample units are not observed or viewed but they do not answer some of the questions. The complete prevention of this error is not possible, but it can be significantly reduced. The non-response causes bias and ...
متن کاملEstimation 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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The problem of variance estimation in two phase sampling under non response was not considered in the literature. We have adapted the classes of variance estimators suggested by Srivastava and Jhajj (1980) into the two phase sampling under the strategy given by Hansen and Hurwitz (1946) for the problem of non-response. In this paper some more generalize classes of estimators for the population ...
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ژورنال
عنوان ژورنال: Communications for Statistical Applications and Methods
سال: 2010
ISSN: 2287-7843
DOI: 10.5351/ckss.2010.17.2.165