Page 165 - Six Sigma Demystified

146 Six SigMa DemystifieD

C. making setups for each product as unique as possible to avoid confusion
between different products.
D. all the above are true.

7. Reducing cycle time by reducing setup time is a practice that is applicable
a. only to manufacturing operations.
B. only to manufacturing operations that produce in batches.
C. only to manufacturing operations that produce in batches and are expensive
to operate.
D. to many manufacturing and nonmanufacturing operations.

8. In analyzing setup practices, the terms internal and external refer to
a. tasks performed by internal personnel or external suppliers, respectively.
B. tasks performed within the department or outside the department,
respectively.
C. tasks performed when the process is nonoperational or while the process is
operational, respectively.
D. tasks required by internal management or external customers, respectively.

9. In a statistical hypothesis test, failing to reject implies that
a. the null hypothesis is true.
B. the null hypothesis is false.
C. the alternative hypothesis is true.
D. there are insufficient data to reject the null hypothesis.

10. In trying to determine which of several possible factors might influence a
process, a team decides to take data from the process while changing all of
the factors one at a time. This method
a. is the clearest method to demonstrate which factors have a significant impact
on the process.
B. is the best way to quickly eliminate factors that don’t have an impact.

C. will ignore any interaction between the factors.
D. all the above are true.