Author Question: A process is said to be out of control if A) a point falls above the upper or below the lower ... (Read 105 times)

elizabeth18 · **on:** Jun 24, 2018

A process is said to be out of control if

A) a point falls above the upper or below the lower control lines.
B) eight or more consecutive points fall above the center line or eight or more consecutive points fall below the center line.
C) Either of the above.
D) None of the above.

Question 2

Which of the following situations suggests a process that appears to be operating out of statistical control?

A) A control chart in which several points fall outside the upper control limit
B) A control chart with a series of consecutive points that are above the center line and a series of consecutive points that are below the center line
C) A control chart in which points fall outside the lower control limit
D) All of the above