QUESTION $17$

$17.$ A production manager at a pottery factory has noticed that about $70$ percent of defects result from impurities in raw materials, $15$ percent result from human error, $10$ percent from machine malfunctions, and $5$ percent from a variety of other causes. This manager is most likely using

A$)$ a Pareto chart

B$)$ a scatter diagram

C$)$ a Taguchi loss function

D$)$ a cause and effect diagram

E$)$ a flow chart