Research Article
A Simple Approach for Monitoring Business Service Time Variation
Table 1
The
and
with
for various
and
given
= 0.05.
| | | 0.10 | 0.20 | 0.30 | 0.40 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| 10 | | 2.61 | | 2.54 | | 2.49 | | 2.46 | | 2.44 | | 2.40 | | 2.31 | | 2.29 | | 2.19 | | 2.36 | | 2.44 | | 2.49 | | 2.53 | | 2.54 | | 2.59 | | 2.72 | | 2.73 | | 2.89 |
| 11 | | 2.61 | | 2.54 | | 2.49 | | 2.44 | | 2.45 | | 2.44 | | 2.39 | | 2.32 | | 2.10 | | 2.36 | | 2.44 | | 2.48 | | 2.54 | | 2.53 | | 2.54 | | 2.59 | | 2.67 | | 3.17 |
| 12 | | 2.60 | | 2.53 | | 2.49 | | 2.45 | | 2.45 | | 2.42 | | 2.40 | | 2.33 | | 2.35 | | 2.36 | | 2.44 | | 2.48 | | 2.53 | | 2.54 | | 2.57 | | 2.57 | | 2.65 | | 2.62 |
| 13 | | 2.58 | | 2.53 | | 2.48 | | 2.45 | | 2.44 | | 2.40 | | 2.37 | | 2.36 | | 2.34 | | 2.38 | | 2.43 | | 2.50 | | 2.53 | | 2.54 | | 2.58 | | 2.61 | | 2.62 | | 2.63 |
| 14 | | 2.58 | | 2.51 | | 2.49 | | 2.47 | | 2.45 | | 2.41 | | 2.38 | | 2.37 | | 2.35 | | 2.35 | | 2.47 | | 2.49 | | 2.50 | | 2.53 | | 2.57 | | 2.60 | | 2.61 | | 2.60 |
| 15 | | 2.57 | | 2.51 | | 2.49 | | 2.47 | | 2.41 | | 2.39 | | 2.36 | | 2.43 | | 2.41 | | 2.37 | | 2.47 | | 2.49 | | 2.51 | | 2.58 | | 2.60 | | 2.64 | | 2.55 | | 2.53 |
| 16 | | 2.57 | | 2.51 | | 2.46 | | 2.47 | | 2.44 | | 2.43 | | 2.39 | | 2.37 | | 2.45 | | 2.38 | | 2.46 | | 2.52 | | 2.50 | | 2.54 | | 2.55 | | 2.60 | | 2.62 | | 2.51 |
| 17 | | 2.57 | | 2.51 | | 2.48 | | 2.42 | | 2.44 | | 2.40 | | 2.39 | | 2.06 | | 2.44 | | 2.41 | | 2.46 | | 2.50 | | 2.56 | | 2.55 | | 2.59 | | 2.59 | | 2.63 | | 2.53 |
| 18 | | 2.57 | | 2.51 | | 2.47 | | 2.44 | | 2.44 | | 2.40 | | 2.37 | | 2.37 | | 2.39 | | 2.40 | | 2.46 | | 2.51 | | 2.54 | | 2.54 | | 2.59 | | 2.62 | | 2.61 | | 2.59 |
| 19 | | 2.57 | | 2.51 | | 2.48 | | 2.47 | | 2.47 | | 2.43 | | 2.27 | | 2.20 | | 2.46 | | 2.41 | | 2.47 | | 2.50 | | 2.51 | | 2.51 | | 2.55 | | 2.79 | | 2.94 | | 2.51 |
| 20 | | 2.55 | | 2.51 | | 2.46 | | 2.47 | | 2.44 | | 2.42 | | 2.42 | | 2.42 | | 2.5 | | 2.42 | | 2.46 | | 2.51 | | 2.50 | | 2.55 | | 2.55 | | 2.56 | | 2.56 | | 2.48 |
| 21 | | 2.55 | | 2.49 | | 2.47 | | 2.46 | | 2.45 | | 2.42 | | 2.50 | | 2.40 | | 2.5 | | 2.42 | | 2.48 | | 2.51 | | 2.52 | | 2.54 | | 2.56 | | 2.48 | | 2.57 | | 2.48 |
| 22 | | 2.55 | | 2.51 | | 2.48 | | 2.43 | | 2.42 | | 2.36 | | 2.29 | | 2.42 | | 2.47 | | 2.42 | | 2.47 | | 2.51 | | 2.55 | | 2.57 | | 2.64 | | 2.76 | | 2.57 | | 2.5 |
| 23 | | 2.56 | | 2.50 | | 2.49 | | 2.46 | | 2.45 | | 2.47 | | 2.32 | | 2.47 | | 2.6 | | 2.41 | | 2.48 | | 2.47 | | 2.52 | | 2.53 | | 2.50 | | 2.71 | | 2.51 | | 2.4 |
| 24 | | 2.54 | | 2.50 | | 2.47 | | 2.45 | | 2.44 | | 2.34 | | 2.43 | | 2.43 | | 2.52 | | 2.42 | | 2.48 | | 2.50 | | 2.53 | | 2.54 | | 2.69 | | 2.55 | | 2.55 | | 2.45 |
| 25 | | 2.56 | | 2.50 | | 2.48 | | 2.45 | | 2.46 | | 2.35 | | 2.43 | | 2.37 | | 2.28 | | 2.41 | | 2.48 | | 2.50 | | 2.52 | | 2.53 | | 2.68 | | 2.56 | | 2.62 | | 2.74 |
| 26 | | 2.56 | | 2.49 | | 2.47 | | 2.45 | | 2.45 | | 2.42 | | 2.44 | | 2.43 | | 2.43 | | 2.41 | | 2.49 | | 2.50 | | 2.54 | | 2.53 | | 2.56 | | 2.55 | | 2.54 | | 2.53 |
| 27 | | 2.54 | | 2.50 | | 2.47 | | 2.46 | | 2.49 | | 2.45 | | 2.42 | | 2.40 | | 2.37 | | 2.42 | | 2.48 | | 2.51 | | 2.52 | | 2.49 | | 2.53 | | 2.56 | | 2.58 | | 2.60 |
| 28 | | 2.55 | | 2.49 | | 2.47 | | 2.46 | | 2.35 | | 2.40 | | 2.40 | | 2.35 | | 2.30 | | 2.42 | | 2.49 | | 2.51 | | 2.52 | | 2.67 | | 2.59 | | 2.58 | | 2.66 | | 2.71 |
| 29 | | 2.54 | | 2.50 | | 2.48 | | 2.44 | | 2.46 | | 2.41 | | 2.45 | | 2.44 | | 2.28 | | 2.43 | | 2.48 | | 2.51 | | 2.55 | | 2.52 | | 2.57 | | 2.53 | | 2.54 | | 2.75 |
| 30 | | 2.53 | | 2.50 | | 2.47 | | 2.47 | | 2.37 | | 2.43 | | 2.42 | | 2.42 | | 2.17 | | 2.44 | | 2.47 | | 2.51 | | 2.51 | | 2.63 | | 2.55 | | 2.56 | | 2.56 | | 3.02 |
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