Question: A manufacturing process is being monitored using a sample of size 50. The UCL and LCL on percentage defectives p are 6.30% (0.063) and 4.80%

A manufacturing process is being monitored using a sample of size 50.

The UCL and LCL on percentage defectives p are 6.30% (0.063) and 4.80%

(0.048), respectively. On a given day 6 defective items were found in the sample of 50.

Is the process in control?

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