In an -chart,the upper control limit is equal to the overall sample mean plus three times the:
A)process standard deviation.
B)average range.
C)standard error of the mean.
D)sample variance.

Question

In an  -chart,the upper control limit is equal to the overall sample mean plus three times the:
A)process standard deviation. 
B)average range. 
C)standard error of the mean. 
D)sample variance.

Quizplus · Accepted Answer

The Answer of In an  -chart,the upper control limit is equal to the overall sample mean plus three times the:
A)process standard deviation. 
B)average range. 
C)standard error of the mean. 
D)sample variance.

In an -Chart,the Upper Control Limit Is Equal to the Overall