Question: The upper and lower specifications for a service are 10 min. and 8 min., respectively. The process average is 9 min. and the process capability
The upper and lower specifications for a service are 10 min. and 8 min., respectively. The process average is 9 min. and the process capability ratio is 1.33. What sigma quality level does this process possess?
Group of answer choices
5 sigma quality level
2 sigma quality level
4 sigma quality level
3 sigma quality level
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