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Mostrando ítems 41-50 de 12750
Associação entre variáveis em tabelas de contingência usando dados de acidentes do trabalho
(Universidade Federal do Rio Grande do NorteBrasilUFRNEstatística, 2017-11-24)
The present study aims to verify the existence of an association between the type of work accident and the units of a hospital in Rio Grande do Norte in the year 2016. The data of work accidents were grouped in a contingency ...
Three Bartlett-type corrections for score statistics in symmetric nonlinear regression models
(SPRINGER, 2010)
We present simple matrix formulae for corrected score statistics in symmetric nonlinear regression models. The corrected score statistics follow more closely a chi (2) distribution than the classical score statistic. Our ...
Monitoring the process mean and variance using a synthetic control chart with two-stage testing
(Taylor & Francis Ltd, 2009-01-01)
In this paper, we propose a synthetic control chart with two-stage testing (SyTS chart) to control the process mean and variance. As in the case of Shewhart control charts, samples are taken from the process at regular ...
Spontaneous resolution in congenital nasolacrimal obstruction after 12 months
(2007-04-01)
A retrospective observational study was performed in order to evaluate the possibility of spontaneous resolution of tearing in the congenital nasolacrimal obstruction (CNLO). Twenty-seven CNLO child carriers with spontaneous ...
Spontaneous resolution in congenital nasolacrimal obstruction after 12 months
(2007-04-01)
A retrospective observational study was performed in order to evaluate the possibility of spontaneous resolution of tearing in the congenital nasolacrimal obstruction (CNLO). Twenty-seven CNLO child carriers with spontaneous ...
The most frequent cardiovascular risk factors in Brazilian aged 80 years or older
(2013-06-01)
To identify the most frequent cardiovascular risk factors (CRFs) in Brazilian participants. Sample of 113 individuals aged 80 to 95 years (83.4 + 2.9 years), of both sexes, from Presidente Prudente, São Paulo state. Waist ...