Question: Key Crazy still makes this small key, but the material supplier has changed and the mean length of the key has changed to 43.003 mm.

Key Crazy still makes this small key, but the material supplier has changed and the mean length of the key has changed to 43.003 mm. The standard deviation of the process has now moved up to 0.005 mm. Since Key Crazy is no longer centered on 43.000 mm, the Cpk is a better measure of Key Crazy's capability on this small key. The specifications remain at 43 +-.01mm 2. 3.

What is the UTL for Key Crazy for this key? _____ (All answers to three decimals for this problem)

4. What is the LTL for Key Crazy for this key?_____

5. What is sigma in mm? ______

6. What is the Cpklow for the LTL?______

7. What is the Cpkhigh for the UTL? ______

8. What is the Cpk? ______

9. Is the process capable of delivering at the 99.7%? _____ (yes or no)

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