Question: C&A Industries is making steel rods with an average diameter of 2 mm. The process has a standard deviation of 0.1 mm. The upper and

C&A Industries is making steel rods with an average diameter of 2 mm. The process has a standard deviation of 0.1 mm. The upper and lower specification limits are 2.2 mm and 1.8 mm respectively. What is C&As process capability index?

0.333

0.667

0.167

0.844

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