Question: A procees is in statistical control with a ? b a r ( x ) = 4 0 . 2 and ? b a r

A procees is in statistical control with a ?bar(x)=40.2 and ?bar(R)=2.7 and n=3. The process specifications are at 40+-5. The quality characteristic has a normal distribution.
What is notential process capability?
A procees is in statistical control with a ?bar(x)=40.2 and ?bar(R)=2.7

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