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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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