Which one of the following statements is TRUE?
A) No two products are exactly alike because the processes that produce them contain many sources of variation, even if the process is a machine.
B) With due diligence, variation in a process can be completely eliminated.
C) SPC and TQM are two competing techniques for quality control.
D) Common causes of variation are those factors that can be identified as commonly occurring at a particular process.

Question

Quizplus · Accepted Answer

It is true that even if a process is a machine, there are still many sources of variation that can result in no two products being exactly alike. This is why statistical process control (SPC) is used to monitor and control the variability in a process.

Which One of the Following Statements Is TRUE