Golf Pro Shop collects data on the number of dissatisfied customers for their visits using a survey
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Question:
Golf Pro Shop collects data on the number of dissatisfied customers for their visits using a survey of customers conducted soon after their golf rounds are completed. Customers respond to a single question indicating on a Yes/No scale whether they were satisfied or dissatisfied with their golf rounds. The data provided below
| Week | Number Dissatisfied |
| 1 | 12 |
| 2 | 9 |
| 3 | 15 |
| 4 | 18 |
| 5 | 12 |
| 6 | 15 |
| 7 | 6 |
| 8 | 27 |
| 9 | 15 |
| 10 | 12 |
| 11 | 9 |
| 12 | 12 |
gives the number of dissatisfied customers noted in 150 responses each week over 12 weeks. Pro Shop Manager, has requested your help in using a control chart to assess the process. Please calculate and report what is the value of theCenter Line (only)for the Proportion (p) control chart.
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