Question: The UCL & LCL are normally set to +/6 sigma values. True False Question 9 2 pts If you can use a rational subgroup size

 The UCL \& LCL are normally set to +/6 sigma values.

The UCL \& LCL are normally set to +/6 sigma values. True False Question 9 2 pts If you can use a rational subgroup size of n=8 or greater then it is better to make an X bar and s chart since the std deviation is a better estimate of variation than the Range. True False

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