Question: Studies on a machine that molds plastic water pipe indicate that when it is injecting 26.62 mm diameter pipe, the process standard deviation is 0.76
Studies on a machine that molds plastic water pipe indicate that when it is injecting 26.62 mm diameter pipe, the process standard deviation is 0.76 mm. The pipe has a specification of 26.62 mm plus or minus 1.7 mm. What is the process capability index (Cp)? a. 0.3728 b. 1.491 c. 0.7456 d. 2.237
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