Question: Studies on a machine that molds plastic water pipe indicate that when it is injecting 25.36 mm diameter pipe, the process standard deviation is 0.48
Studies on a machine that molds plastic water pipe indicate that when it is injecting 25.36 mm diameter pipe, the process standard deviation is 0.48 mm. The pipe has a specification of 25.36 mm plus or minus 1.91 mm. What is the process capability index (Cp)?
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