R-charts are ________ if the calculations are done manually by a process worker on the factory floor.
A)more accurate than charts based on the standard deviation
B)more useful than x-charts
C)the only way to determine if a process is under control
D)easy to construct and use

Question

Quizplus · Accepted Answer

R-charts are easy to construct and use, but they are not necessarily more accurate or useful than other types of control charts. They can help process workers on the factory floor identify when a process is out of control, but they are not the only way to determine control.

R-Charts Are ________ If the Calculations Are Done Manually by a Process