**12/11/08 - 15:30h** Ciclo de Palestras Pós Graduação em Estatística UFRJ

["Alexandra M. Schmidt" <alex@im.ufrj.br>]

Caros, 

Dando continuidade as atividades do Ciclo de Palestras do Programa de Pós-
Graduação em Estatística do IM-UFRJ, teremos, 

nesta **4a feira, 12/11/08**, as **15:30h** a

Palestrante: Silvia Ferrari (IME-USP)
Titulo: "Improved likelihood inference in beta regression"

Local: Sala C-116, Centro de Tecnologia, Cidade Universitária.


Resumo:
We consider the issue of performing accurate small-sample likelihood-based 
inference in beta regression models, which are useful for modeling 
continuous proportions that are affected by independent variables. We derive 
Skovgaard's (Scandinavian Journal of Statistics, 28 (2001) 3-32) adjusted 
likelihood ratio statistic in this class of models. We show that the 
adjustment term has a simple compact form that can be easily implemented 
from standard statistical software. We present Monte Carlo simulations 
showing that inference based on the adjusted statistic we propose is more 
reliable than that based on the usual likelihood ratio statistic. 


Para maiores detalhes e programacao atualizada, visite www.dme.ufrj.br opcao 
Atividades subopcao Ciclo de Palestras.

Atenciosamente,

Alexandra

Ps.: Desculpem-me pela eventual duplicacao desta mensagem.

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Alexandra Mello Schmidt, PhD
Professora Adjunta
Instituto de Matemática - UFRJ
Departamento de Métodos Estatísticos
Caixa Postal 68530 Rio de Janeiro - RJ 
CEP:21.945-970 Brasil
Tel: 0055 21 2562 7505 Ramal (Extension) 204
Fax: 0055 21 2562 7374

http://www.dme.ufrj.br/~alex
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