Abstract
The capability index CPU is recommended for quality features with a unilateral specification of USL. Linearity, flatness, circularity and cylindricity are examples of such quality features. Here, a Wald statistic is developed for testing the equality of k CPU indices. Industrial data sets are used in illustrations. The procedure is extended for testing the equality of k CPL indices, where the index CPL is used to summarize process performance relative to a single lower specification limit.
Original language | English (US) |
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Pages (from-to) | 304-307 |
Number of pages | 4 |
Journal | Journal of Quality Technology |
Volume | 37 |
Issue number | 4 |
DOIs | |
State | Published - Oct 2005 |
Keywords
- Capability Analysis
- Flatness
- Form Tolerance
- One-Sided Specifications
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Strategy and Management
- Management Science and Operations Research
- Industrial and Manufacturing Engineering