Research Article
A Simple Approach for Monitoring Business Service Time Variation
Table 2
The
of the EWMA-AM chart (
,
with
).
| | | | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| | 10 | 370.3 | 10.4 | 4.9 | 3.3 | 2.5 | 2.1 | 1.9 | 1.7 | 1.3 | | 11 | 372.0 | 9.8 | 4.6 | 3.1 | 2.5 | 2.1 | 1.9 | 1.7 | 1.3 | | 12 | 370.4 | 9.3 | 4.4 | 3.0 | 2.3 | 2.0 | 1.8 | 1.4 | 1.1 | | 13 | 370.1 | 8.9 | 4.2 | 2.9 | 2.2 | 1.9 | 1.6 | 1.3 | 1.0 | | 14 | 371.9 | 8.5 | 4.1 | 2.7 | 2.2 | 1.9 | 1.6 | 1.3 | 1.0 | | 15 | 371.3 | 8.2 | 4.0 | 2.7 | 2.1 | 1.8 | 1.5 | 1.2 | 1.0 | | 16 | 370.3 | 7.9 | 3.8 | 2.6 | 2.1 | 1.8 | 1.6 | 1.2 | 1.0 | | 17 | 369.4 | 7.7 | 3.7 | 2.6 | 2.0 | 1.7 | 1.4 | 1.1 | 1.0 | | 18 | 371.0 | 7.4 | 3.7 | 2.5 | 2.0 | 1.6 | 1.3 | 1.1 | 1.0 | | 19 | 368.8 | 7.2 | 3.5 | 2.4 | 2.0 | 1.7 | 1.3 | 1.1 | 1.0 | | 20 | 368.8 | 7.0 | 3.5 | 2.4 | 1.9 | 1.6 | 1.2 | 1.0 | 1.0 | | 21 | 370.2 | 6.8 | 3.4 | 2.4 | 1.9 | 1.7 | 1.3 | 1.0 | 1.0 | | 22 | 369.9 | 6.6 | 3.3 | 2.3 | 1.9 | 1.5 | 1.2 | 1.0 | 1.0 | | 23 | 370.2 | 6.5 | 3.2 | 2.3 | 1.8 | 1.4 | 1.1 | 1.0 | 1.0 | | 24 | 369.9 | 6.3 | 3.1 | 2.2 | 1.9 | 1.5 | 1.2 | 1.0 | 1.0 | | 25 | 370.1 | 6.2 | 3.1 | 2.2 | 1.8 | 1.4 | 1.1 | 1.0 | 1.0 | | 26 | 369.8 | 6.0 | 3.0 | 2.1 | 1.7 | 1.3 | 1.1 | 1.0 | 1.0 | | 27 | 369.8 | 5.9 | 3.0 | 2.2 | 1.8 | 1.4 | 1.1 | 1.0 | 1.0 | | 28 | 369.7 | 5.8 | 2.9 | 2.1 | 1.7 | 1.3 | 1.0 | 1.0 | 1.0 | | 29 | 369.4 | 5.7 | 2.9 | 2.1 | 1.6 | 1.2 | 1.0 | 1.0 | 1.0 | | 30 | 369.9 | 5.6 | 2.9 | 2.1 | 1.7 | 1.3 | 1.0 | 1.0 | 1.0 |
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