Regarding special cause variability, all are true except
A)Disrupt the random patterns of common cause variation
B)Arises from external sources that are not inherent in the process
C)Appear sporadically
D)Hard to detect using statistical methods

Question

Quizplus · Accepted Answer

Special cause variability can usually be detected using statistical methods, such as control charts. This is because special causes often result in data that falls outside the normal variability of the process. Therefore, option D is incorrect, while options A, B, and C are all true statements about special cause variability.

Regarding Special Cause Variability, All Are True Except