Question: For the following data, construct a fraction defective chart by using 3 sigma. Is the process under control? GROUP SAMPLE SIZE NO. OF DEFECTIVES 1

For the following data, construct a fraction

For the following data, construct a fraction defective chart by using 3 sigma. Is the process under control? GROUP SAMPLE SIZE NO. OF DEFECTIVES 1 160 22 2 160 27 3 250 27 4 250 22 160 17 6 400 32 7 250 250 22 160 22 10 160 17 11 400 37 12 400 27 5 6 00 OWN 22 8

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