A manufacturing process is used produces two different products, A and B. The products and number of defects recorded on

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A Manufacturing Process Is Used Produces Two Different Products A And B The Products And Number Of Defects Recorded On 1 (100.3 KiB) Viewed 19 times

A manufacturing process is used produces two different products, A and B. The products and number of defects recorded on the manufacturing line for the previous 16 days is shown below. The sample size for each day is 300. Day Product Number of Defects (Nonconformities) 6 12 12 15 14 10 12 11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A A B B B B B A A A A A B B B B 5 3 6 7 18 15 14 10 i) Show how a standardised attribute control chart could be used to plot both products on the one chart and determine the limits of this control chart. 6 marks ii) Determine the points you should plot for each subgroup. 12 marks iii) Plot the control chart and assess whether the process is in statistical control. 7 marks