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Revista Colombiana de Estadística

Print version ISSN 0120-1751

Rev.Colomb.Estad. vol.29 no.1 Bogotá Jan./June 2006

 

Estudio de potencia de pruebas de homogeneidad de varianza

A Study of the Power of Tests for Homogeneity of Variance

JUAN CARLOS CORREA1, RENÉ IRAL2, LUCINIA ROJAS3

1Universidad Nacional de Colombia, Escuela de Estadística, Medellín, Profesor asociado. E-mail: jccorrea@unal.edu.co
2Universidad Nacional de Colombia, Escuela de Estadística, Medellín, Profesor asociado. E-mail: riral@unal.edu.co
3Universidad Nacional de Colombia, Escuela de Estadística, Medellín, Profesora temporal. E-mail:lrojasp@unal.edu.co


Resumen

Se realizó un estudio vía simulación para determinar el nivel real y la po tencia de pruebas de homogeneidad de varianza que se aplican comúnmente y de otras pruebas recientemente propuestas. Los resultados permiten a los usuarios tener criterios para escoger la prueba más adecuada de acuerdo con las circunstancias.

Palabras clave: Pruebas de homogeneidad, heteroscedasticidad.


Abstract

Determining the real level of significance and the power of homogeneity of variance tests which are currently applied is the main purpose of this study. The results allow users to have criteria to choose the best test according to the circumstances.

Key words: Tests of homogeneity, Heteroscedasticity.


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