Research Article
A Robust Control Chart for Monitoring Dispersion
Table 3
for dispersion shifts in the heavy tailed distribution
, for several values of the change time
.
| | | | MWCPM | ROBUSTD | NLREWMA |
| 50 | 2.0 | 278 | 50.7 | 80.2 | 3.0 | 179 | 12.5 | 25.0 | 0.5 | 707 | 79.8 | 386.8 | 0.33 | 769 | 22.6 | 312.8 |
| 300 | 2.0 | 104 | 18.6 | 25.3 | 3.0 | 52.3 | 8.4 | 10.5 | 0.5 | 1144 | 32.1 | 307.9 | 0.33 | 728 | 19.0 | 72.7 |
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