Question: b) Draw a control chart for proportion defective showing the center line (CL), upper control limit (UCL), and lower control limit (LCL) and plotting the

b) Draw a control chart for proportion defective

b) Draw a control chart for proportion defective showing the center line (CL), upper control limit (UCL), and lower control limit (LCL) and plotting the ten points. ( Using 2 sigma

for calculation ) (10 marks)

A manufacturer of a fiching line takes a sample of 60 lengths at regular intervals and counts the number that breaks when subjected to a strain of 38 Nenton's. During a period when production was satisfactory the results for ten samples were as follows

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