Please show sufficient steps when answering.

If necessary, round intermediate calculations and final answers to three decimal places

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Question 1 After a number of complaints about its directory assistance, a telephone company examined samples of calls to determine the frequency of wrong numbers given to callers. Each sample consisted of 100 calls. SAMPLE 1 2 3 4 5 6 7 8 Number of errors 5 3 5 7 4 6 84 SAMPLE 9 10 11 12 13 14 15 16 Number of errors 5 9 3 4 5 6 6 a. Set the control limits to include 95% of random variation in complaint rate. b. Plot the values of the sample statistic on a chart. Comment on the results. c. Discuss THREE major management decisions related to the use of the control charts