Abstract
Kiregyera (1984), Mukerjee, Rao & Vijayan (1987), and Tripathi & Ahmed (1995) considered a number of regression-type estimators where information on two auxiliary variables related to study variable is available at different levels. Mukerjee et al. (1987) suggested three estimators and computed their mean square errors, but the computations seem to be incorrect. This note corrects them, and finds their estimators are no better than that of Kiregyera (1984). The estimator suggested by Tripathi & Ahmed (1995) is the best in the sense of having the smallest mean square error.
Original language | English |
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Pages (from-to) | 373-376 |
Number of pages | 4 |
Journal | Australian and New Zealand Journal of Statistics |
Volume | 40 |
Issue number | 3 |
DOIs | |
Publication status | Published - Sept 1998 |
Externally published | Yes |
Keywords
- Regression-type estimator
- Two-phase sampling
ASJC Scopus subject areas
- Statistics and Probability
- Statistics, Probability and Uncertainty