Random samples of 200 copier machines were taken on an assembly line every hour for the past

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Random samples of 200 copier machines were taken on an assembly line every hour for the past 25 hours. The number of defective machines is shown here. Are there any points beyond the control limits? If so, what do they tell you about the production process?

3 5 3 2 2 11 12 6 7 5 0 7 8 2 10 6 4 2 10 5 4 11 10 13 14

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