The number of defective products in each of 40 samples taken from a production run are shown here. In each sample, 200 units were examined and classified as either good or defective, depending on whether dimensional tolerances had been met. Use an appropriate 3-sigma control chart in commenting on the state of control of the process.

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Sample Number of Number Defectives Sample Number Number of Defectives 123456700 12 9 15 11 2222 21 10 22 10 23 7 24 8 15 25 12 8 26 9 14 27 12 8 13 28 16 9 10 29 12 10 12 30 11 11 7 31 11 12 12 32 9 13 12 33 7 14 14 34 12 15 8 35 16 9 36 00.00 8 8 17 7 37 12 18 8 38 9 19 10 39 6 20 12 40 11