Resumo

GUEVARA, RUBEN DARÍO  e  VARGAS, JOSÉ ALBERTO. Confidence Intervals for the Capability Indices C_pm and C_pmk in Stationary Gaussian Processes. Rev.Colomb.Estad. [online]. 2006, vol.29, n.2, pp.153-162. ISSN 0120-1751.

Process capability indices provide a measure of how a process meets preset specification limits. Procedures to construct confidence intervals for C_pm and C_pmk for stationary gaussian processes show low coverage probabilities. This paper presents a new methodology for constructing confidence intervals for the indices C_pm and C_pmk for stationary gaussian processes and by simulation study the coverage percentage for AR(1) processes is calculated.

Palavras-chave : Autocorrelation; Process capability analysis; Process capability indices; Estimation.

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