Question 18

Two control charts are used when the dimension of interest is a variable like weight, thickness, length, or time. These two charts are:

A. Mean chart and range chart

B. Mean chart and p-chart

C. Range chart and p-chart

D. p-chart and c-chart

Question 19

If a process is in control it must be capable and if a process is capable it must be in control.

True

False

Question 20

For a process involving variables both the mean chart and the range chart must indicate control in order for the process to be considered in control.

True

False