Question: Studies on a machine that molds plastic water pipe indicate that when it is injecting 25.24 mm diameter pipe, the process standard deviation is 0.44

Studies on a machine that molds plastic water pipe indicate that when it is injecting 25.24 mm diameter pipe, the process standard deviation is 0.44 mm. The pipe has a specification of 25.24 mm plus or minus 1.12 mm. What is the process capability index (Cp)? Select one: a. 0.8485 b. 2.545 c. 1.697 d. 0.4242

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