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| Titel: |
Approximations to the powers of the likelihood ratio tests: the loop ordering and slippage alternatives |
| Auteur: |
Singh, Bahadur Schell, Michael J. Wright, F.T. |
| Verschenen in: |
Communications in statistics |
| Paginering: | Jaargang 24 (1995) nr. 1 pagina's 91-109 |
| Jaar: |
1995 |
| Inhoud: |
Approximations to the power functions of the likelihood ratio tests of homogeneity of normal means against the simple loop ordering at slippage alternatives are considered. If a researcher knows which mean is smallest and which is largest, but does not know how the other means are ordered, then a simple loop ordering is appropriate. The accuracy of the several moment approximations are studied for the case of known variances and it is found that for powers in the range typically of interest, the two-moment approximation seems quite adequate. Approximations based on mixtures of noncentral F variables are developed for the case of unknown variances. The critical values of the test statistics are also tabulated for selected levels of significance. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 18 gevonden artikelen
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