2 papers
stat.ME2020
Improved estimators in beta prime regression models
Francisco M. C. Medeiros, Mariana C. Araújo, Marcelo Bourguignon
In this paper, we consider the beta prime regression model recently proposed by \cite{bour18}, which is tailored to situations where the response is continuous and restricted to th…
math.ST2020
Bartlett and Bartlett-type corrections in heteroscedastic symmetric nonlinear regression models
Mariana C. Araújo, Audrey H. M. A. Cysneiros, Lourdes C. Montenegro
This paper provides general expression for Bartlett and Bartlett-type correction factors for the likelihood ratio and gradient statistics to test the dispersion parameter in hetero…