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A Metal-Cutting Operation Has a Target Value of 20 and Consistently

Question 71

Multiple Choice

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.What is the process capability ratio?


A) 1.20
B) 1.33
C) 1.46
D) 1.66

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