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| Titel: |
A discussion on the limitations of b. prasad's unbiased estimator in finite population sampling |
| Auteur: |
Kung-Jong, Lui |
| Verschenen in: |
Communications in statistics |
| Paginering: | Jaargang 20 (1991) nr. 1 pagina's 293-298 |
| Jaar: |
1991 |
| Inhoud: |
With respect to random sampling in finite population sampling, B. Prasad (1986) proposed an unbiased estimator of the population mean. Prasad claimed that his estimator may be modified so that it is more precise than the simple mean or the ratio estimator, regardless of the value of the population correlation coefficient between the variates X and Y. To further understand the properties of Prasad's unbiased estimator (PUE), however, we systematically discuss the limitations of the PUE by considering a composite estimator, that includes the PUE as a special case. We also show that the strategy suggested by Prasad to assure that the PUE is preferable to the simple mean estimator may, conversely, cause the PUE to lose efficiency in some situations. The discussion presented here will be useful for researchers who apply the PUE to estimate the population mean. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 27 gevonden artikelen
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