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Completed forms from a particular department of an insurance company were sampled daily to check the performance quality of the department. To establish a tentative
Completed forms from a particular department of an insurance company were sampled daily to check the performance quality of the department. To establish a tentative norm for the department, a sample of 100 units was collected each day for 8 days, with the following results: (Show all your work) Calculate the centerline, sample standard deviation, and control limits for a p-chart using a 90% confidence level (Use z = 1.645). (show all your work)
Sample | Sample Size | # of Incorrect Forms |
1 | 100 | 5 |
2 | 100 | 3 |
3 | 100 | 6 |
4 | 100 | 3 |
5 | 100 | 1 |
6 | 100 | 5 |
7 | 100 | 2 |
8 | 100 | 3 |
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