Cpk=min(3Upperspecificationlimitx,3x-Lowerspecificationlimit) For the given information, the process capability index (Cpk)=0.67 (round your response to two decimal places). ACpk index of 1.0 for both the upper and lower control limits indicates that the process variation is centered within the upper and lower control limits. As index goes above 1,0, the process becomes increasingly target-oriented with fewer defects. If the Cpk is less than 1.0 , the process will not produce with specified tolerance