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

question 28

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.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.

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