Variations on kurtosis estimation with different statistics software
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| Autor: | |
|---|---|
| Médium: | artículo |
| Stav: | Versión publicada |
| Datum vydání: | 2019 |
| Popis: | Kurtosis, or a distribution’s fourth moment, is used to describe distributions and belongs to some normality contrast tests. Most of the statistical softwares include kurtosis, which makes the estimation to be relatively easy. Nevertheless, for a same data set, statistical softwares can provide a different result. The objective of this work is to depict kurtosis estimation differences between statistical softwares that are most commonly used among agricultural economists. Two samples were used to compare kurtosis coefficient estimation differences with nine different statistic softwares. Results shows that these differences are not due to a mistaken estimation procedure, but mainly because the term kurtosis is used wrongly. In conclusion, when working with a small sample size and adjustment factor is not considered, there is a 20% probability of making a mistaken conclusion. |
| Země: | Portal de Revistas TEC |
| Instituce: | Instituto Tecnológico de Costa Rica |
| Repositorio: | Portal de Revistas TEC |
| Jazyk: | Español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/4456 |
| On-line přístup: | https://revistas.tec.ac.cr/index.php/eagronegocios/article/view/4456 |
| Klíčové slovo: | cuarto momento exceso de curtosis exceso de curtosis ajustado software estadístico fourth momentum excess kurtosis adjusted excess kurtosis statistic software |