Research Article
Robust Control Charts for Monitoring Process Mean of Phase-I Multivariate Individual Observations
Table 1
Estimates of the model parameters
for
/
control charts.
| | | = 0.05 | | | = 0.01 | | | = 0.001 | | | | | | | | | | |
| | | | | | | | | | |
| 2 | 17.223 | 41102 | 2.647 | 21.134 | 38170 | 2.329 | 27.051 | 192909 | 2.508 | 3 | 20.134 | 35844 | 2.209 | 24.287 | 128924 | 2.344 | 31.350 | 1144947 | 2.718 | 4 | 23.152 | 269357 | 2.548 | 28.181 | 1272773 | 2.773 | 35.575 | 5989325 | 2.973 | 5 | 24.685 | 467949 | 2.524 | 28.437 | 1417059 | 2.632 | 31.013 | 2666196 | 2.593 | 6 | 26.962 | 1762051 | 2.746 | 29.654 | 3061216 | 2.711 | 31.662 | 5414248 | 2.669 | 7 | 24.892 | 1099128 | 2.493 | 22.882 | 1585224 | 2.416 | 19.058 | 3465278 | 2.444 | 8 | 27.236 | 2908821 | 2.667 | 27.245 | 4922576 | 2.644 | 28.326 | 12134778 | 2.710 | 9 | 23.974 | 2447649 | 2.534 | 21.420 | 4726835 | 2.554 | 18.772 | 14096595 | 2.676 | 10 | 31.894 | 12572909 | 2.914 | 37.085 | 34375654 | 3.033 | 56.573 | 172176786 | 3.301 |
| | | | | | | | | | |
| 2 | 17.442 | 29553 | 2.494 | 21.365 | 31571 | 2.244 | 27.594 | 148747 | 2.434 | 3 | 20.286 | 22497 | 2.066 | 24.387 | 59096 | 2.13 | 31.326 | 338665 | 2.402 | 4 | 23.095 | 108855 | 2.286 | 27.549 | 291064 | 2.372 | 35.109 | 1255429 | 2.576 | 5 | 24.796 | 238966 | 2.334 | 28.302 | 508097 | 2.367 | 32.008 | 1063783 | 2.377 | 6 | 27.585 | 1041090 | 2.606 | 31.126 | 1882888 | 2.601 | 37.136 | 4714353 | 2.671 | 7 | 28.151 | 1541634 | 2.598 | 30.936 | 3183762 | 2.635 | 39.357 | 12199414 | 2.827 | 8 | 34.917 | 14798692 | 3.127 | 45.767 | 75616029 | 3.419 | 70.875 | 840512379 | 3.904 | 9 | 39.191 | 59094377 | 3.415 | 50.271 | 275604839 | 3.679 | 72.768 | 1960966919 | 4.039 | 10 | 50.733 | 950607720 | 4.099 | 68.154 | 4696452032 | 4.379 | 110.587 | 56398461817 | 4.881 |
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