Research Article
A New Statistical Approach Based on the Access of Electricity Application with Some Modified Control Charts
Table 6
Comparison of the
and
when
by using the EWMA control charts with
.
| Methods | Shifts | ARL | SDRL | | | | | |
| MLE | 0 | 300.193 | 301.5449 | 31 | 100 | 205 | 355.3 | 719.5 | 3.05 | 32.849 | 33.87167 | 4 | 12 | 23 | 38 | 76 | 3.1 | 28.986 | 28.88993 | 4 | 11 | 20 | 34 | 65 | 3.2 | 21.1835 | 20.59726 | 3 | 8 | 15 | 25 | 48 | 3.4 | 13.197 | 12.8232 | 2 | 5 | 9 | 15 | 30 | 3.6 | 8.569 | 8.194377 | 1 | 3 | 6 | 10 | 19 | 3.8 | 6.0215 | 5.70897 | 1 | 2 | 4 | 7 | 13 | 4 | 4.401 | 3.925163 | 1 | 2 | 3 | 5 | 10 | 4.2 | 3.459 | 2.938475 | 1 | 1 | 3 | 4 | 7 | 4.4 | 2.7215 | 2.25754 | 1 | 1 | 2 | 3 | 6 | 4.6 | 2.2955 | 1.788793 | 1 | 1 | 2 | 3 | 5 |
| MMLE | 0 | 300.2065 | 294.8528 | 32 | 106 | 204 | 362 | 714.3 | 2.5 | 1.6965 | 1.123841 | 1 | 1 | 1 | 2 | 3 | 3.1 | 1.6095 | 1.021534 | 1 | 1 | 1 | 2 | 3 | 3.2 | 1.525 | 0.926177 | 1 | 1 | 1 | 2 | 3 | 3.4 | 1.4185 | 0.79792 | 1 | 1 | 1 | 1 | 2 | 3.6 | 1.2705 | 0.592879 | 1 | 1 | 1 | 1 | 2 | 3.8 | 1.231 | 0.564622 | 1 | 1 | 1 | 1 | 2 | 4 | 1.1455 | 0.423579 | 1 | 1 | 1 | 1 | 2 | 4.2 | 1.106 | 0.334395 | 1 | 1 | 1 | 1 | 1 | 4.4 | 1.0635 | 0.251991 | 1 | 1 | 1 | 1 | 1 | 4.6 | 1.0455 | 0.220123 | 1 | 1 | 1 | 1 | 1 |
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