Which of the following statements is/are true regarding the process capability index (C_pk)? A) The C_pk considers how small the process standard deviation is compared to what the customer normally expects. B) The C_pk considers how far away the process mean is from what the customer normally expects. C) The smaller the C_pk, the more accurate the process would be in meeting specifications. D) All of the above are true.

Question

Quizplus · Accepted Answer

The process capability index (C_pk) measures how closely a process is able to meet customer specifications. Specifically, it takes into account the difference between the process mean and the customer's expected value, as well as the variability of the process. Option A is incorrect because it describes the process standard deviation without considering the customer's expectations. Option C is incorrect because a smaller C_pk indicates a larger deviation from the customer's expectations and therefore less accuracy in meeting specifications. Option D is incorrect because only option B is true.

Which of the Following Statements Is/are True Regarding the Process