Question: 3a. Define statistical process control and discuss its advantages. (8 marks) 3b. Pizza produced by Rob's Pizza are monitored for defects. Defects from eighteen pizza

3a. Define statistical process control and
3a. Define statistical process control and discuss its advantages. (8 marks) 3b. Pizza produced by Rob's Pizza are monitored for defects. Defects from eighteen pizza have been recorded as follows. Identify and draw an appropriate control chart and determine the chart's control limits. Are the number of defects from each pizza within the control limit? What does this mean? (12 marks) Sample Number of Defects Sample Number of Defects 1 1 10 2 2 3 11 1 3 4 12 4 4 2 13 3 5 14 0 6 2 15 5 7 16 4 8 3 17 2 18 3 4 NYNON 0 9

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