Question: According to following data, design a control chart and determine process is in or out-of-control. Time 1 2 3 4 5 6 7 Average of
According to following data, design a control chart and determine process is in or out-of-control.
| Time | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Average of length (cm) | 10.5 | 21.34 | 16.09 | 20.13 | 25.89 | 11.35 | 14.23 |
Note that, the UCL and LCL of the control chart are 25.44 and 11.17, respectively. In addition, the curtained customer target is also considered as 18.33.
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