Artículos de Investigación
Heteroscedasticity in a two-factors design model
Published 2013-09-03
Keywords
- Two-factors design model,
- heteroscedasti¬city of variance,
- covariance structure.
- Modelo de diseño de dos factores,
- hete¬rocedasticidad de varianza,
- estructura de covarianza.
How to Cite
Martínez Jaime, O. A., & Díaz García, J. A. (2013). Heteroscedasticity in a two-factors design model. Acta Universitaria, 23(3), 14–19. https://doi.org/10.15174/au.2013.453
Abstract
This paper studies the two-factors design model when the heteroscedasticity of variance is present in errors. As can be observed, testing of hypothesis based on the main effects for this design model can be performed using Hotelling's T2 test. Simultaneous confidence intervals are also proposed. Finally, the proposed methodology is applied to a real-life example.