CONFIDENCE INTERVALS FOR THE CAPABILITY INDICES Cpm AND Cpmk IN STATIONARY GAUSSIAN PROCESSES

Process capability indices provide a measure of how a process meets preset specification limits. Procedures to construct confidence intervals for Cpm and Cpmk for stationary gaussian processes show low coverage probabilities. This paper presents a new methodology for constructing confidence interval...

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Bibliographic Details
Published in:Revista Colombiana de estadística 2006-07, Vol.29 (2), p.153
Main Authors: Guevara, Rubén Darío, Vargas, José Alberto
Format: Article
Language:English
Online Access:Get full text
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Summary:Process capability indices provide a measure of how a process meets preset specification limits. Procedures to construct confidence intervals for Cpm and Cpmk for stationary gaussian processes show low coverage probabilities. This paper presents a new methodology for constructing confidence intervals for the indices Cpm and Cpmk for stationary gaussian processes and by simulation study the coverage percentage for AR(1) processes is calculated.
ISSN:0120-1751
2389-8976