Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Acta scientiarum. Technology (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/21250 |
Resumo: | The Wald method is grounded on a statistic based on the asymptotic approximation of normal distribution. The method has shown incoherent values at a nominal level of confidence for the probability of coverage in intervallic estimates, mainly in small samples, noticeable in linear functions formed by binomial proportions. Current analysis improves this method used in inferring from binomial linear functions, taking into consideration zero-inflated samples. Improvement was assessed byMonte Carlosimulation techniques within different scenarios. Results show that the improvement proposed is recommended in situations in which sampling proportions are close to 0,5 and produce a maximum variance of the binomial proportions involved in the composition of the linear function. |
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Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functionsbinomial familiesprobability of coveragesimulationProbabilidade e EstatísticaThe Wald method is grounded on a statistic based on the asymptotic approximation of normal distribution. The method has shown incoherent values at a nominal level of confidence for the probability of coverage in intervallic estimates, mainly in small samples, noticeable in linear functions formed by binomial proportions. Current analysis improves this method used in inferring from binomial linear functions, taking into consideration zero-inflated samples. Improvement was assessed byMonte Carlosimulation techniques within different scenarios. Results show that the improvement proposed is recommended in situations in which sampling proportions are close to 0,5 and produce a maximum variance of the binomial proportions involved in the composition of the linear function. Universidade Estadual De Maringá2015-01-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionIntervalos de Confiançaapplication/pdfapplication/mswordhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2125010.4025/actascitechnol.v37i1.21250Acta Scientiarum. Technology; Vol 37 No 1 (2015); 47-54Acta Scientiarum. Technology; v. 37 n. 1 (2015); 47-541806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMengporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/21250/pdf_60http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/21250/751375142437Peixoto, Cleide Silveira BrasilCirillo, Marcelo AngeloSilva, Augusto Maciel dainfo:eu-repo/semantics/openAccess2015-01-12T11:44:43Zoai:periodicos.uem.br/ojs:article/21250Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2015-01-12T11:44:43Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions |
title |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions |
spellingShingle |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions Peixoto, Cleide Silveira Brasil binomial families probability of coverage simulation Probabilidade e Estatística |
title_short |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions |
title_full |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions |
title_fullStr |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions |
title_full_unstemmed |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions |
title_sort |
Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions |
author |
Peixoto, Cleide Silveira Brasil |
author_facet |
Peixoto, Cleide Silveira Brasil Cirillo, Marcelo Angelo Silva, Augusto Maciel da |
author_role |
author |
author2 |
Cirillo, Marcelo Angelo Silva, Augusto Maciel da |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Peixoto, Cleide Silveira Brasil Cirillo, Marcelo Angelo Silva, Augusto Maciel da |
dc.subject.por.fl_str_mv |
binomial families probability of coverage simulation Probabilidade e Estatística |
topic |
binomial families probability of coverage simulation Probabilidade e Estatística |
description |
The Wald method is grounded on a statistic based on the asymptotic approximation of normal distribution. The method has shown incoherent values at a nominal level of confidence for the probability of coverage in intervallic estimates, mainly in small samples, noticeable in linear functions formed by binomial proportions. Current analysis improves this method used in inferring from binomial linear functions, taking into consideration zero-inflated samples. Improvement was assessed byMonte Carlosimulation techniques within different scenarios. Results show that the improvement proposed is recommended in situations in which sampling proportions are close to 0,5 and produce a maximum variance of the binomial proportions involved in the composition of the linear function. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Intervalos de Confiança |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/21250 10.4025/actascitechnol.v37i1.21250 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/21250 |
identifier_str_mv |
10.4025/actascitechnol.v37i1.21250 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/21250/pdf_60 http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/21250/751375142437 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/msword |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 37 No 1 (2015); 47-54 Acta Scientiarum. Technology; v. 37 n. 1 (2015); 47-54 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
_version_ |
1799315335443120128 |