Which of the following statements is TRUE?
A) If a process is in statistical control, assignable causes of variation should be sought.
B) If a process is in statistical control, there are no causes of variation.
C) If a process is out of statistical control, there are only assignable causes of variation.
D) When assignable causes of variation exist, the process generates different distributions of the quality characteristic over time.

Question

Quizplus · Accepted Answer

When assignable causes of variation exist, they lead to changes in the process, resulting in different distributions of the quality characteristic over time.

Which of the Following Statements Is TRUE