Which of the Following Is CORRECT Regarding an X-Chart?
A)Individual $\bar{x}$

Multiple Choice

Which of the following is CORRECT regarding an x-chart?

A) Individual data require averaging before being plotted on it.
B) It is less sensitive to many conditions that can be detected by $\bar{x}$ -chart and R-chart.
C) Specification limits cannot be drawn on the chart for direct comparison with the control limits.
D) The assumption of normality of observations is less critical than for $\bar{x}$ -chart and R-charts.