Question: A process is in statistical control with xbarbar = 7 5 and Sbar = 2 . The control chart uses a sample size of n

A process is in statistical control with xbarbar =75 and
Sbar =2. The control chart uses a sample size of n =
8. Specifications are at 80\pm 8. The quality characteristic
is normally distributed.
a. Estimate the potential capability of the process.
b. Estimate the actual process capability.
c. Howmuch improvement could be made

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