Research Article
Exponentially Weighted Moving Average Control Charts for the Process Mean Using Exponential Ratio Type Estimator
Table 12
ARLs for proposed repetitive EWMA-RSS control chart using Khan et al. [
8] exponential ratio-type estimator, when
is 370.
| shift | = 3.0025, = 2.6008, λ = 0.3 |
| f | = 0.25 | = 0.50 | = 0.90 |
| 0 | 370.98 | 370.98 | 370.98 |
| 0.01 | 345.45 | 340.04 | 255.68 |
| 0.02 | 283.01 | 268.31 | 121.48 |
| 0.03 | 214.45 | 194.74 | 56.47 |
| 0.04 | 156.62 | 136.67 | 27.79 |
| 0.05 | 113.07 | 95.32 | 14.63 |
| 0.10 | 24.57 | 18.49 | 1.75 |
| 0.15 | 7.14 | 5.16 | 1.04 |
| 0.20 | 2.84 | 2.13 | 1.00 |
| 0.25 | 1.58 | 1.31 | 1.00 |
| 0.30 | 1.17 | 1.08 | 1.00 |
| 0.35 | 1.05 | 1.01 | 1.00 |
| 0.40 | 1.00 | 1.00 | 1.00 |
| 0.5 | 1.00 | 1.00 | 1.00 |
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