| Title | A Distribution-Free Phase I Control Chart for Subgroup Scale |
| Author(s) | L. Allison Jones-Farmer and Charles W. Champ |
| Source | Journal of Quality Technology |
| Topic | Performance Measurement
Data Analysis Performance Improvement |
| Abstract | A Phase I control chart that is distribution free is proposed for processes that are in control. The proposed method achieves in-control performance when used with both normal and nonnormal data and is sensitive to subgroup differences in process scale. Guidance is provided for combining this method with an existing distribution-free Phase I chart for studying process location. |
| Access Restrictions | ASQ members and journal subscribers |
| Link for .PDF | http://www.asq.org/quality-technology/2010/10/statistical-process-control-spc/a-distribution-free-phase-i-control-chart-for-subgroup-scale.pdf |
| Link for HTML | None |
| Reference Code | 1-012 |
HBOK 1-012
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