x.Hm; A Post Office has initiated Total Quality Management practices to measure
ID: 2953106 • Letter: X
Question
x.Hm; A Post Office has initiated Total Quality Management practices to measure the quality of service and detecting whether the process is in control or not through statistical process control methods (SPC). The operations manager collected a random sample size of 3000 postal deliveries and the number of defectives (wrong deliveries) was recorded. The data of 15 weeks are shown as under.Sample no No of defectives Sample Proportion Defective(P) 1 16 ? 2 13 ? 3 20 ? 4 3 ? 5 18 ? 6 6 7 26 8 9 9 8 10 24 11 14 12 5 13 12 A Post Office has initiated Total Quality Management practices to measure the quality of service and detecting whether the process is in control or not through statistical process control methods (SPC). The operations manager collected a random sample size of 3000 postal deliveries and the number of defectives (wrong deliveries) was recorded. The data of 15 weeks are shown as under.
Sample no No of defectives Sample Proportion Defective(P) 1 16 ? 2 13 ? 3 20 ? 4 3 ? 5 18 ? 6 6 7 26 8 9 9 8 10 24 11 14 12 5 13 12
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