Instability is most readily apparent on the:
A) $\overline { X ^ { * } }$ chart.
B)R chart.
C)np chart.
D)I chart.

Question

Quizplus · Accepted Answer

The R chart is used to monitor the variability of a process. When instability is present in a process, this chart will show points outside of the control limits, indicating that the process is not in statistical control. The other charts listed are not as effective in detecting instability in a process.

Instability Is Most Readily Apparent on The: A) X∗‾\overline { X ^ { * } }X∗

Instability Is Most Readily Apparent on The:
A) $\overline { X ^ { * } }$