Research Article
A New Statistical Approach Based on the Access of Electricity Application with Some Modified Control Charts
Table 4
Comparison of the
and
when
by using the EWMA control charts with
.
| Methods | Shifts | ARL | SDRL | | | | | |
| MLE | 0 | 370.21 | 361.8405 | 39 | 128 | 254 | 454.6 | 889.3 | 2.5 | 43.8005 | 42.78773 | 5 | 16 | 31 | 54 | 101 | 3.1 | 38.4295 | 38.852 | 4 | 14 | 27 | 46 | 87 | 3.2 | 28.168 | 28.55776 | 3 | 10 | 20 | 33 | 63 | 3.4 | 17.0265 | 16.57206 | 2 | 6 | 12 | 21 | 38 | 3.6 | 10.8385 | 10.2469 | 1 | 4 | 8 | 13 | 24 | 3.8 | 7.2875 | 6.797569 | 1 | 3 | 5 | 9 | 16 | 4 | 5.1535 | 4.82012 | 1 | 2 | 4 | 6 | 11 | 4.2 | 3.908 | 3.418242 | 1 | 2 | 3 | 5 | 8 | 4.4 | 2.968 | 2.531834 | 1 | 1 | 2 | 3 | 6 | 4.6 | 2.4395 | 1.964248 | 1 | 1 | 2 | 3 | 5 | MMLE | 0 | 370.873 | 346.3069 | 39 | 135 | 270 | 450 | 857 | 2.5 | 1.775 | 1.17135 | 1 | 1 | 1 | 2 | 3 | 3.1 | 1.69 | 1.156533 | 1 | 1 | 1 | 2 | 3 | 3.2 | 1.616 | 1.076161 | 1 | 1 | 1 | 2 | 3 | 3.4 | 1.45 | 0.844901 | 1 | 1 | 1 | 2 | 2 | 3.6 | 1.3195 | 0.666815 | 1 | 1 | 1 | 1 | 2 | 3.8 | 1.2245 | 0.523676 | 1 | 1 | 1 | 1 | 2 | 4 | 1.1655 | 0.445207 | 1 | 1 | 1 | 1 | 2 | 4.2 | 1.1115 | 0.355149 | 1 | 1 | 1 | 1 | 1 | 4.4 | 1.082 | 0.307121 | 1 | 1 | 1 | 1 | 1 | 4.6 | 1.0555 | 0.249902 | 1 | 1 | 1 | 1 | 1 |
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