A shift in the process mean for a measured quality characteristic would most likely be detected by a(n):
A)p-chart
B)x-bar chart
C)c-chart
D)R-chart
E)s-chart

Question

Quizplus · Accepted Answer

An x-bar chart is used to monitor changes in the process mean over time. A shift in the process mean will cause the x-bar chart to show out-of-control signals or points beyond the control limits. The p-chart is used to monitor proportion non-conforming data, c-chart is used to monitor count non-conforming data, R-chart is used to monitor the variability of the process, and the s-chart is used to monitor the standard deviation of the process.

A Shift in the Process Mean for a Measured Quality