Combination of Ratio and Regression Estimator of Population Mean in Presence of Non–response

Abstract

Singh and Kumar [1] developed regression-cum-ratio estimator for population mean in the presence of non–response for two-phase sampling using information of two auxiliary variables x and z . In this paper simple generalized regression-cum-ratio estimator in the presence of non–response has been presented with three different situations. Empirical and theoretical study is carried out to compare the efficiency of the suggested estimators over the existing estimators. 

Keywords

• Non–response,Mean square error,Two auxiliary variables,Two-phase sampling

References

1. [1] Singh, H.P. and Kumar, S. 2011. Combination of regression and ratio estimate in presence of non response. Braz. J. Statist. Assoc. 25(2): 205-217.