Question: A p-chart has been developed for a process. The collected data and features of the control are shown below. Is the following process in a
A p-chart has been developed for a process. The collected data and features of the control are shown below. Is the following process in a state of control?
| Sample | Proportion of Defects |
| 1 | 0.325 |
| 2 | 0.075 |
| 3 | 0.38 |
| 4 | 0.25 |
| 5 | 0.25 |
| 6 | 0.15 |
| 7 | 0.175 |
| 8 | 0.125 |
LCL = 0.0024
UCL = 0.37
| Yes | ||
| No | ||
| Unknown | ||
| Cpk is required |
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