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Computation of Owen'sQFunction Applied to Process Capability Analysis

 

作者: GuirguisGeorges H.,   RodriguezRobert N.,  

 

期刊: Journal of Quality Technology  （Taylor Available online 1992）
卷期: Volume 24, issue 4  

页码: 236-246

 

ISSN:0022-4065

 

年代: 1992

 

DOI:10.1080/00224065.1992.11979405

 

出版商: Taylor&Francis

 

关键词: Bivariate Noncentral t Distribution;Capability Indices;Confidence Intervals;Process Capability Analysis

 

数据来源: Taylor

 

摘要:

A computer program is presented for computing lower confidence limits for the process capability index Cpk. One of the methods implemented requires computation of the Q function introduced by D. B. Owen in 1965 to represent a bivariate noncentraltdistribution function. The Q function is also useful for computing the probability density function of the point estimator for Cpk, and a second program is presented for this purpose.

 

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