Final answer:
A time-ordered plot of sample statistics is called a control chart. Control charts are used in quality control to monitor and improve processes over time.
Step-by-step explanation:
A time-ordered plot of sample statistics is called a control chart. A control chart is a statistical tool that is used to determine if a process is in a state of control or if it is experiencing some form of special cause variation.
It is often used in quality control to monitor and improve processes over time. Control charts typically display the sample statistics (such as means or standard deviations) on the vertical axis and time on the horizontal axis.