Two commonly used measures to calculate the capability of a process are ______.
A)the process capability index and process centering capability index
B)the process centering capability index and the control index
C)the control index and the range specification
D)the range specification and the process capability index

Question

Quizplus · Accepted Answer

The process capability index (e.g. Cp, Cpk) measures the ability of a process to produce outputs within certain specification limits, while the process centering capability index (e.g. Cpm) measures how centered the process is between those specification limits. These two measures are commonly used together to assess and improve process capability. Option B, C, and D do not accurately describe commonly used measures of process capability.

Two Commonly Used Measures to Calculate the Capability of a Process