Sample mean xbar control charts monitor production processes

Sample mean (xbar) control charts monitor production processes graphically over time using the basic concepts of confidence intervals.

a. True

b. False

Solution

a. True

Essentially while procreating the x -bar control charts we produce 2 cutoffs (one minimum and one maximum) as the limit to define which processes are under control. Thus the basic idea is essentially derived from the concept of confidence intervals.