Question: Control Charts for Attributes Problem 6 Construct a Number of defectives chart for the following data and plot the chart. Is the process under control?

Control Charts for Attributes Problem 6 Construct

Control Charts for Attributes Problem 6 Construct a Number of defectives chart for the following data and plot the chart. Is the process under control? Sample size = 400 nos. No. of sub groups = 12 Subgroup no. No. of defectives Subgroup no. No. of defectives 1 32 7 30 2 20 8 36 3 16 9 26 4 20 10 52 5 24 11 38 6 42 12 24

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