Research Article
A Robust Control Chart for Monitoring Dispersion
Table 1
Values of the threshold sequence
corresponding to
of 200, 500, and 1000.
| | 200 | 500 | 1000 |
| 21 | 1.920 | 1.922 | 1.924 | 22 | 2.389 | 2.390 | 2.392 | 23 | 2.571 | 2.825 | 2.827 | 24 | 2.840 | 2.916 | 2.947 | 25 | 2.853 | 2.982 | 3.173 | 26 | 2.864 | 3.015 | 3.288 | 27 | 2.875 | 3.057 | 3.309 | 28 | 2.885 | 3.086 | 3.329 | 29 | 2.895 | 3.114 | 3.348 | 30 | 2.903 | 3.146 | 3.365 | 40 | 2.972 | 3.255 | 3.474 | 50 | 3.006 | 3.299 | 3.500 | 60 | 3.020 | 3.322 | 3.521 | 70 | 3.046 | 3.331 | 3.519 | 80 | 3.042 | 3.339 | 3.535 | 90 | 3.033 | 3.349 | 3.548 | 100 | 3.036 | 3.350 | 3.543 | 200 | 3.051 | 3.369 | 3.577 | 300 | 3.074 | 3.384 | 3.579 | 400 | 3.071 | 3.379 | 3.600 | 500 | 3.089 | 3.357 | 3.588 | 600 | 3.057 | 3.372 | 3.605 | 700 | 3.052 | 3.373 | 3.578 | 800 | 3.063 | 3.355 | 3.582 | 900 | 3.080 | 3.361 | 3.599 | 1000 | 3.083 | 3.369 | 3.593 |
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