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Q16. SCENARIO
A Six Sigma team is measuring the moisture content of corn starch as it leaves the conveyer belt of a dryer. They collect one sample four cups of starch at times indicated in the chart at fixed locations labeled A, B, C, and D across the end of the belt. See the diagram below.
Which type of variation dominates? (Hint: Plot the points on the graph above.)
A. within sample
B. sample to sample within the hour
C. hour to hour
D. none of the above
Answer: A
Q17. Work performed by the payroll department is considered value added activity.
A. true
B. false
Answer: B
Q18. Calculate the interaction effect
A. 1.5
B. 205
C. –5
D. 17
E. –17
Answer: C
Q19. Quality Function Deployment is a tool to aid in:
A. analyzing non-paired data
B. determining if quality procedures being followed on the shop floor
C. ascertaining which processes are functioning correctly
D. linking customer requirements to product features
E. all of the above
F. none of the above
Answer: D
Q20. A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.A customer requires that SPC charts be done on their forms which have spaces for only 5 readings per sample. What should be the UCL and LCL for tbe new averages chart?
A. 12.53 and 12.71
B. 12.58 and 12.66
C. 11.61 and 13.63
D. none of the above
Answer: A
Q21. Intuitively, which factor A or B seems most likely to be significant?
A. A
B. B
C. C
D. neither
E. both about equally significant
Answer: A
Q22. A set of data from a process has 8 readings per sample and 50 samples. The mean of the 50 sample means is 12.62. The mean of the 50 ranges is 0.18.Find control limits for the R chart.
A. 0.10 and 0.25
B. none and 0.33
C. 0.02 and 0.33
D. none of the above
Answer: C
Q23. The support for an important quality initiative was lacking in congress until Reagan’s Secretary of Commerce was killed in a horse back riding accident in 1987. That initiative was:
A. assigning National Institute for Standards and Technology (NIST) quality oversight duties
B. “consensus of the House” proclamation for Deming’s 14 points
C. changing National Bureau of Standards to NIST.
D. authorizing the American National Standards Institute (ANSI) to join with the International Standards Organization (ISO) to promulgate standards.
E. none of the above.
Answer: E
Q24. Find Cpk
A. 2.00
B. 0.56
C. 1.33
D. 0.44
Answer: D
Q25. A stable, normally distributed process with specification 3.50±.03 hasμ=σ= .016. What percent of the production violates specification?
Find Cp and Cpk.
A. 1.21 and .85
B. .85 and 1.21
C. .35 and .63
D. .63 and .42
E. none of the above
Answer: D
Q26. This QFD matrix was used in the design process for a ball point pen.
What symbol is appropriate for the square labeled 8?
Answer: D
Q27. SCENARIO
A Six Sigma team is measuring the moisture content of corn starch as it leaves the conveyer belt of a dryer. They collect one sample four cups of starch at times indicated in the chart at fixed locations labeled A, B, C, and D across the end of the belt. See the diagram below.
Which type of variation dominates?
A. within sample
B. sample to sample within the hour
C. hour to hour
D. none of the above
Answer: C
Q28. The team in the above problem draws arrows from Post-It® notes that are causes to notes that are the effects of these causes. This step is best described by which approach to problem solving?
A. Affinity diagram
B. Inter-relationship digraph
C. Tree diagram
D. Process decision program chart
E. Matrix diagram
F. Prioritization matrix
G. Activity network diagram
Answer: B
Q29. The average yield from a small batch process has been 83%. A new catalyst is available which is designed to increase average yield by at least 5 percentage points. A sample of 45 batches is run with the new catalyst.
The average yield of this sample is 90% and the standard deviation of the sample yields is 2.8%. A hypothesis test with = 0.05 will be used to determine whether the sample data indicate that the new catalyst does increase the average yield by at least 5 percentage points.
This will be a:
A. left-tail test
B. right-tail test
C. two-tail test
Answer: B
Q30. A Six Sigma project designed to solve a particular problem needs a definition/scope statement to help avoid:
A. going beyond the problem into other problems
B. failing to cover the entire problem
C. misunderstanding and disagreement between team members regarding problem boundaries
D. all of the above
E. none of the above
Answer: D