Which of the Following Statements Is False Regarding Control Charts

Multiple Choice

Which of the following statements is false regarding control charts?

A) If we view using a control chart as a graphical hypothesis test, the null hypothesis is that the process has not changed.
B) A type I error in control charting results in an unnecessary adjustment to the process.
C) A type II error in control charting results in an unnecessary adjustment to the process.
D) A process within which special cause variation is present is said to be out of control.
E) A process which exhibits only common cause variation is said to be in control.