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An Alternative Approach to Estimation in Two-Phase Sampling Using two Auxiliary Variables |
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| Authors: | J Smoo L N Smoo S Mohanty |
| Abstract: | Using two-phase sampling mechanism, two alternative estimators in the presence of the available knowledge on second auxiliary variable z are considered, when the population mean of the main auxiliary variable × is unknown. The suggested estimators are found to be more eficient than the ratio-type and regression-type estimators suggested by KIREGYERA (1980, 1984). |
| Keywords: | Auxiliary variable Correlation coefficient Mean square error Ratio estimator Regression coeficient Regression estimator Two-phase sampling |