If the upper and lower specification limits of a process are .852 and .828,respectively,and the process standard deviation is .002,then the process capability index C_p is A).024 B)2.000 C)−2.000 D)12.000

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Quizplus · Accepted Answer

The formula for process capability index C_p is: C_p = (USL – LSL) / (6 * standard deviation) Substituting the given values, we get: C_p = (.852 - .828) / (6 * .002) = 2 A process capability index of 2 indicates that the process can produce output within the specifications and is considered a good process. Therefore, the best choice is option B.

If the Upper and Lower Specification Limits of a Process