Influence diagnostics in exponentiated-Weibull regression models with censored data

• Autores: Edwin M. M. Ortega, Vicente G. Cancho, Heleno Bolfarine
• Localización: Sort: Statistics and Operations Research Transactions, ISSN 1696-2281, Vol. 30, Nº. 2, 2006, págs. 171-192
• Idioma: inglés
• Títulos paralelos:
  • Diagnóstico de influencia en modelos de regresión exponencial-Weibull con datos censurados
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• Resumen

  • The aim of this work is to propose models to study the toxic effect of different concentrations of some standard mutagens in different colon cancer cell lines. We find estimates and, by means of an inverse regression problem, confidence intervals for the subtoxic concentration, that is the concentration that reduces by thirty percent the number of colonies obtained in the absence of mutagen.