A control chart used when the output of a process is measured in terms of the mean value of a variable such as a length, weight, temperature, and so on is
A)a p chart
B)an x-bar chart
C)an R chart
D)an np chart

Question

Quizplus · Accepted Answer

An x-bar chart is used to monitor the average or mean value of a variable over time. This is suitable for processes where the output can be measured in terms of a continuous variable, such as length, weight, temperature, etc. The chart helps to identify if the process is stable or if there are any shifts in the mean value, indicating a need for corrective action.

A Control Chart Used When the Output of a Process