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Mathematics, 18.12.2019 22:31 christianconklin22

Studies on a machine that molds plastic water pipe indicate that when it is injecting 1-inch diameter pipe, the process standard deviation is 0.05 inches. the one-inch pipe has a specification of 1-inch plus or minus 0.10 inch. what is the process capability index (cpk) if the long-run process mean is 1 inch? a. 0.50
b. 0.67
c. 1.00
d. 2.00

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