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Construct a 3 sigma p-chart

The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.

Day 1 2 3 4 5 6 7 8 9 10
Defectives 7 6 6 9 5 6 0 8 9 1

a) Construct a 3 sigma p- chart using this information.
b) If the number of defectives on the next three days are 12,5, and 13, is the process in control.

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