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What is When to Use p Charts in SPC about?

This document discusses when to use p charts for statistical process control. P charts are appropriate when decisions are simple yes/no based on inspection and sample sizes are large, over 50. The document provides an example of p chart calculations using sample defect data from 7 days with a sample size of 200 each day. It calculates the process proportion p, standard deviation sp, and upper and lower control limits to determine if the process is in control.

Author

Mostak Tahmid

Language

EN