1. As we discussed in class, common cause variation is best considered:
a. Controllable at the source of the variation.
b. Called assignable cause as it is something that is periodic, yet common.
c. Can be reduced by statistical process control methods
d. The responsibility of the operator in charge on the production line.
e. The responsibility of management overseeing the production line.
2. Testing whether a cellphone boots up the first time 100% correctly is an example of:
a. Supplier certification and management.
b. In-process control.
c. Finished goods control.
d. Statistical process control.
e. None of the above.
3. Which of the following is not related to a continuous metric?
a. Measured as the degree of conformance to a specification
b. x-bar and R-charts
c. p-chart
d. Time
e. n-charts