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In this paper, we have considered stratified two-phase sampling design with sub-sampling the non-respondents in the presence of non-response for estimating population mean considering the information of two auxiliary variables. The proposed estimators are the exponential function of two auxiliary variables when means of the two auxiliary variables are not known in prior. Further the proposed estimators...
This study is based on the proposal of generalized exponential estimator for finite population variance using two transformed auxiliary variables. The expressions for mean square errors and the minimum values for the optimized constants are obtained. The conditions are obtained for which the proposed estimator are better than existing estimators. The result of empirical and simulation study indicates...
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