Question: Six Sigma and Process Capability Alcor Inc. has been producing steel sticks since a long time ago. They produce sticks with a target length of

Six Sigma and Process Capability

Alcor Inc. has been producing steel sticks since a long time ago. They produce sticks with a target length of 18 cm. The Upper Tolerance Limit (UTL) is 18.3 cm and Lower Tolerance Limit is 17.7 cm. The average length of the produced sticks is 17.9 cm, and the standard deviation () is 0.05 cm.

Calculate the Process Capability Ratio (Cpk).
Is the process shifted to the lower or upper specification?
Is this process capable? Explain using Cpk.

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