In an $\bar{x}$ control chart, the upper control limit is set equal to which one of the following:
A)process mean
B)process mean plus three standard deviations
C)upper design tolerance limit
D)upper value of the maximum range R?

Question

Quizplus · Accepted Answer

The upper control limit in an $\bar{x}$ control chart is typically set to the process mean plus three standard deviations to account for the natural variation in the process.

In An xˉ\bar{x}xˉ Control Chart, the Upper Control Limit Is Set Equal to Set

In An $\bar{x}$ Control Chart, the Upper Control Limit Is Set Equal to Set