dc.contributor | Valença, Dione Maria | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/7087070689947611 | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/7402574019454862 | |
dc.contributor | Andrade, Bernardo Borba de | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/0358291729873455 | |
dc.contributor | Cordeiro, Gauss Moutinho | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/3268732497595112 | |
dc.contributor | Ferrari, Silvia Lopes de Paula | |
dc.contributor | | |
dc.contributor | http://lattes.cnpq.br/4552581220981608 | |
dc.creator | Carneiro, Hérica Priscila de Araújo | |
dc.date.accessioned | 2015-02-26 | |
dc.date.accessioned | 2015-03-03T15:28:33Z | |
dc.date.accessioned | 2022-10-06T14:22:52Z | |
dc.date.available | 2015-02-26 | |
dc.date.available | 2015-03-03T15:28:33Z | |
dc.date.available | 2022-10-06T14:22:52Z | |
dc.date.created | 2015-02-26 | |
dc.date.created | 2015-03-03T15:28:33Z | |
dc.date.issued | 2012-08-14 | |
dc.identifier | CARNEIRO, Hérica Priscila de Araújo. Testes de hipóteses em modelos de sobrevivência
com Fração de cura. 2012. 90 f. Dissertação (Mestrado em Probabilidade e Estatística; Modelagem Matemática) - Universidade Federal do Rio Grande do Norte, Natal, 2012. | |
dc.identifier | https://repositorio.ufrn.br/jspui/handle/123456789/18644 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3976773 | |
dc.description.abstract | Survival models deals with the modeling of time to event data. However in some
situations part of the population may be no longer subject to the event. Models
that take this fact into account are called cure rate models. There are few studies
about hypothesis tests in cure rate models. Recently a new test statistic, the gradient
statistic, has been proposed. It shares the same asymptotic properties with the classic
large sample tests, the likelihood ratio, score and Wald tests. Some simulation studies
have been carried out to explore the behavior of the gradient statistic in fi nite samples
and compare it with the classic statistics in diff erent models. The main objective of
this work is to study and compare the performance of gradient test and likelihood ratio
test in cure rate models. We first describe the models and present the main asymptotic
properties of the tests. We perform a simulation study based on the promotion time
model with Weibull distribution to assess the performance of the tests in finite samples.
An application is presented to illustrate the studied concepts | |
dc.publisher | Universidade Federal do Rio Grande do Norte | |
dc.publisher | BR | |
dc.publisher | UFRN | |
dc.publisher | Programa de Pós-Graduação em Matemática Aplicada e Estatística | |
dc.publisher | Probabilidade e Estatística; Modelagem Matemática | |
dc.rights | Acesso Aberto | |
dc.subject | análise de sobrevivência | |
dc.subject | fração de cura | |
dc.subject | modelo unicado | |
dc.subject | teste gradiente | |
dc.subject | survival analysis | |
dc.subject | cure rate | |
dc.subject | unified model | |
dc.subject | gradient test | |
dc.title | Testes de hipóteses em modelos de sobrevivência
com Fração de cura | |
dc.type | masterThesis | |