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Details van artikel 18 van 22 gevonden artikelen
| Titel: |
On the robustness and johnson's modification of the one sample T-Statistic |
| Auteur: |
Nanayakkaraa, Nuwan |
| Verschenen in: |
Communications in statistics |
| Paginering: | Jaargang 21 (1992) nr. 11 pagina's 3079-3096 |
| Jaar: |
1992 |
| Inhoud: |
Cicchitelli (1989) conducted an extensive Monte Carlo study to investigate the robustness of the one sample T-statistic under non-normal parent populations. He considered a rich family of distributions, viz., the generalized λ-distribution which was introduced by Ramberg et al. (1979), as the family of parent populations. We shall address and reinforce his empirical findings by means of Edgeworth expansion of the T-statistic. As the skewness of the parent population affects the T-statistic more than the kurtosis, Johnson (1978) suggested a modification to the T-statistic to reduce the effect of skewness. We investigate the performance of this modified T-statistic under the same family of distributions as Cicchitelli considered by means of a Monte Carlo study and give some recommendations on its use. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 18 van 22 gevonden artikelen
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