A metal-cutting operation has a target value of 20 and consistently averages 19.8 with a standard deviation of 0.5. The design engineers have established an upper specification limit of 22 and a lower specification limit of 18

Which statement concerning this process is TRUE?
A) The process capability ratio is 1.46.
B) The process capability index is 1.33.
C) The process is in control.
D) None of these is true.


D

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Answer the following statement true (T) or false (F)

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