EST/CCET

DEPARTAMENTO DE ESTATISTICA

CENTRO DE CIÊNCIAS EXATAS E DA TERRA

Notícias

Ciclo de seminários do Departamento de Estatística da UFRN - 2019
29/04/2019 16:34


Ciclo de seminários do Departamento de Estatística da UFRN - 2019


TítuloHigher-order approximate confidence intervals

Palestrante: Prof. Dr. Francisco Moisés Cândido de Medeiros – DEST/UFRN

Quando08 de maio de 2019, quarta-feira, às 14:00h.

OndeAuditório do CCET/UFRN

 

Abstract: Standard confidence intervals employed in applied statistical analysis are usually based on asymptotic approximations. Such approximations can be considerably inaccurate in small and moderate sized samples. We derive accurate confidence intervals based on higher-order approximate quantiles of the score function. The coverage approximation error is O(n^{-3/2}) while the approximation error of confidence intervals based on the asymptotic normality of MLEs is O(n^{-1/2}). Monte Carlo simulations confirm theoretical findings. An implementation for regression models and real data applications are provided.

 
 
 

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