Question: 8. (10%) A production process has capability indices Cp = 0.5 and Cpk = 0.4. What is the corresponding defect rate? Enter a number between

8. (10%) A production process has capability8. (10%) A production process has capability

8. (10%) A production process has capability indices Cp = 0.5 and Cpk = 0.4. What is the corresponding defect rate? Enter a number between 0 and 1, and keep at least 3 decimal places. (Hint: Draw a normal distribution curve and think about how Cp and Cpk are linked with defect rates through Z.] 9. (5%) After we tune the machine, the team reported that the Cp = 0.5 and Cpk = 1.0 now. Which of the following statements is correct? a. The quality improved. b. The quality deteriorated. c. The quality stays the same. d. It is physically not possible

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