Before an $\bar { X }$ chart can be used properly, the production process should be verified as being under control, as determined by its:
A)central value.
B)variability.
C)distribution.
D)run length.

Question

Quizplus · Accepted Answer

The 11eae52e_2a4f_0766_a033_d935449d7046_TB7503_11 chart is a control chart used to monitor variability in a production process. Therefore, before using this chart, it is important to verify that the process is under control in terms of its variability. A central value, distribution, and run length can also be important indicators of process control, but in the case of this specific chart, variability is the most relevant factor.

Before An Xˉ\bar { X }Xˉ Chart Can Be Used Properly, the Production Process Should Be

Before An $\bar { X }$ Chart Can Be Used Properly, the Production Process Should Be