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Your company is under contract with a buyer who requires that a particular process maintain a minimum capability of 1.33. This process is known to currently be in a state of statistical control. Your quality manager has calculated that the process has a Cp of 1.25 and a Cpk of 1.15. What can you conclude about the process? Select all of the statements from below that are true. You should not calculate capability since the process is not in a state of statistical control and no

A. * further analysis is necessary .
B. The process is currently capable .
C. The process is not currently capable. The process could be made capable if the process mean were shifted to be equal to the nominal
OD. value :
E. Even if the process mean were shifted to be equal to the nominal value it would not be capable .
OF. The process is centered at its nominal value.
G. The process is not centered at its nominal value.

Answer :

Answer:

Options C, E and G are correct.

Explanation:

C. The process is not currently capable (Reason : Cpk is less than 1.33)

E. Even if the process mean were shifted to be equal to the nominal value it would not be capable (Reason : Shifting process mean to be equal to nominal value will only change Cpk but not Cp. Cp will be always greater than or equal to Cpk. Thus Cpk will be improved to max 1.25 which will not make the process capable)

G. The process is not centered at its nominal value.

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