Rubén Darío Guevara

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There are practical situations in which the quality of a process or product can be better characterized by a functional relationship between a response variable and one or more explanatory variables, which is called profile. Such profiles frequently can be represented adequately using linear or nonlinear models. While there are several studies in monitoring(More)
The process capability indices provide a measure of how a process fits within the specification limits. In calculating indices is usual to assume that the process data are independent. However, in industrial applications data are often autocorrelated. This paper deals with the indices Cp, C pk , Cpm and C pmk when data are autocorrelated. Variances for(More)
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