Question: What are the three sigma control limits for a c chart with an average number of nonconformities equal to 1 2 ? What is the

What are the threesigma control limits for a cchart with an average number of nonconformities equal to 12?
What is the average run length for this chart if the process average shifts to 15?
Are the cchart and the uchart equivalent when the sample size is constant?

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