Abstract
In this paper, the robustness of the multivariate exponentially weighted moving average (MEWMA) control chart to non-normal data is examined. Two non-normal distributions of interest are the multivariate t distribution and the multivariate gamma distribution. Recommendations for constructing MEWMA control charts when the normality assumption may be violated are provided.
Original language | English (US) |
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Pages (from-to) | 31-38 |
Number of pages | 8 |
Journal | Quality and Reliability Engineering International |
Volume | 19 |
Issue number | 1 |
DOIs | |
State | Published - 2003 |
Keywords
- Average run length
- Control charts
- Multivariate exponentially weighted moving average
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Management Science and Operations Research