Question: 28. Studies on a machine that molds plastic water pipe indicate that when it is injecting 29.09 mm diameter pipe, the process standard deviation is

28. 28. Studies on a machine that molds plastic water

Studies on a machine that molds plastic water pipe indicate that when it is injecting 29.09 mm diameter pipe, the process standard deviation is 0.89 mm. The pipe has a specification of 29.09 mm plus or minus 0.71 mm. What is the process capability index (Cp)? a. 0.7978 O b. 0.2659 O c. 0.133 O d. 0.5318

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