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Question 4 A maintenance group improves the effectiveness of its repair work by monitoring the number of maintenance req
Posted: Wed May 04, 2022 7:42 am
by answerhappygod
- Question 4 A Maintenance Group Improves The Effectiveness Of Its Repair Work By Monitoring The Number Of Maintenance Req 1 (113.09 KiB) Viewed 50 times
Question 4 A maintenance group improves the effectiveness of its repair work by monitoring the number of maintenance requests that require a second call to complete the repair. Twenty weeks of data are shown in following table. Find trial control limits for this process. Second Visit Second Visit Total Total Week Requests Required Week Requests Required 1 200 6 11 100 1 2 250 8 12 100 0 3 250 9 13 100 1 4 250 7 14 200 5 200 3 15 200 6 200 4 16 200 7 150 2 17 200 8 150 1 18 200 9 150 0 19 250 10 150 2 20 250 4 5 3 10 4 7 6