Question

The company replies that they set an upper and lower specification limit for the fingerboard length of 27.5 cm + 0.3 cm and 27.5 cm - 0.3 cm, respectively, and keep a Cp value of 2.0.

After several months, he seems to notice a slight difference in the fingerboard length. He asks the plant again for production data and they reply that they had a small problem and the boat length was temporarily centered at 27.3 cm, but the process is back on target. There was no change to the standard deviation.

What was the Cp and Cpk for the process during the problem?

Answer 1