A control chart on which subgroup means are plotted versus time is a(n)_________ chart.
A) $\overline { \mathrm { X } }$
B)R
C)p
D)C

Question

Quizplus · Accepted Answer

A control chart on which subgroup means are plotted versus time is called an $\overline { \mathrm { X } }$ chart. This chart is used to monitor the process mean over time and determine if any changes or trends are occurring. The R chart (B) is used to monitor the process variability, the p chart (C) is used for proportion data, and the C chart (D) is used for count data.

A Control Chart on Which Subgroup Means Are Plotted Versus X‾\overline { \mathrm { X } }X

A Control Chart on Which Subgroup Means Are Plotted Versus $\overline { \mathrm { X } }$