A generalized class of estimators under two-phase stratified sampling for non response |
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| Authors: | Javid Shabbir Sat Gupta Shakeel Ahmed |
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| Affiliation: | 1. Department of Statistics, Quaid-i-Azam University, Islamabad, Pakistan;2. Department of Mathematics and Statistics, The University of North Carolina at Greensboro, Greensboro, North California, USA |
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| Abstract: | In this paper, we propose a generalized class of estimators for finite population mean using two auxiliary variables in two-phase stratified sampling for non response. We identify 17 estimators as special cases of the proposed class of estimators. Expressions for the bias and mean squared error (MSE) of estimators are obtained up to first order of approximation. A data set is used for efficiency comparisons. |
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| Keywords: | Bias efficiency mean squared error (MSE) non response two-phase stratified sampling |
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