Control limits are often confused with _____.
A)control charts
B)tolerance limits
C)specification limits
D)variance limits

Question

Quizplus · Accepted Answer

Control limits are the statistical limits used to determine if a process is stable and predictable. They are based on the process variation and are usually set at 3 standard deviations from the process average. Tolerance limits, on the other hand, are the upper and lower limits of acceptable variation specified by the customer or product specifications. Control charts are the graphical representations of the process data and the control limits. Variance limits are not commonly used in quality control.

Control Limits Are Often Confused with _____