A process has been operating very capably with all of its' output falling between the UCL and the LCL.None-the-less,there is some level of variation in the measurements of the output of the process.What is the source of this variation?
A)Less experienced operators
B)Inconsistent raw materials
C)Natural variation
D)Equipment wear and vibration

Question

Quizplus · Accepted Answer

Even if a process is operating within the UCL and LCL, there can still be a level of natural variation present. This is often referred to as common cause variation, which is inherent in any process and cannot be eliminated completely. The other options listed could also contribute to variation, but natural variation is the most likely source in this scenario.

A Process Has Been Operating Very Capably with All of Its