When the range of process variation does not conform to the design specifications, the process capability index will be less than 1.

Question

Quizplus · Accepted Answer

A process capability index (Cpk) measures how well a process is able to produce output within the design specifications. When the range of process variation exceeds the design specifications, the Cpk will be less than 1, indicating that the process is not capable of consistently producing output within the desired range. Therefore, the statement is true.

When the Range of Process Variation Does Not Conform to the Design