NAME:____________________________
DATE:____________________________
PTAC 2446 Troubleshooting Fall 2021, Session 2
CHAPTER SIX
CONTROL CHARTS
_____1. Assignable cause is best described as:
a. a simple tool designed to quantitatively monitor important characteristics
of a process.
b. the mean or arithmetic average.
c. a cause of unpredictable variation that can be identified using structured
techniques.
d. a process characteristic that can be checked or counted.
2. An attribute is best described as:
a. a cause of unpredictable variation that can be identified using structured
techniques.
b. a process characteristic that can be checked or counted.
c. the highest point established as the top specification on a control chart.
UCL X-bar = Average X-bar + (A2 X Average R).
d. are boundaries that tell you if the process is in control.
3. The average of a group of process variables is best described as:
a. the difference between the highest and lowest number.
