- (Topic 1)
In a series of linked processes and associated feedback loops the product or service flows _____ and the information flows _____ .

1. A. rapidly, slower
2. B. downstream, upstream
3. C. evenly, digitally
4. D. sooner, later
5. E. to the customer, from the supplier
6. F. none of the above

Correct Answer: B

- (Topic 2)
Proposed Six Sigma projects that are not in some way linked to organizational goals:

1. A. will typically be short term
2. B. use statistical inference
3. C. have a high risk of failure
4. D. should not be approved
5. E. none of the above

Correct Answer: D

- (Topic 1)
Find the value of (4) in the ANOVA table. Assume:

1. A. 16.4
2. B. 3.2
3. C. 18.6
4. D. 23.2
5. E. 4.54
6. F. 12.2
7. G. 0.525
8. H. 2.82
9. I. 1.48
10. J. 35.4
11. K. 0.10<P<1
12. L. 0.05<P<0.10
13. M. 0.01<P<0.05
14. N. 0.005<P<0.01
15. O. 0<P<0.005

Correct Answer: K

- (Topic 2)
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 the control limits for the xbar chart.

1. A. 12.55 and 12.69
2. B. 12.11 and 13.13
3. C. 12.54 and 12.70
4. D. none of the above

Correct Answer: A

This formula is using control limit for the x bar chart

= 12.62 + (0.373)(0.18)
= 12.62 + 0.06714
= 12.69

=12.62 – (0.373)(0.18)
=12.62 – 0.06714
= 12.55
UCL is 12.69 and LCL is 12.55

- (Topic 2)
Calculate the main effect of factor A:

1. A. 20
2. B. 25
3. C. 30
4. D. 40
5. E. none of the above

Correct Answer: A

A factorial experiment can be analyzed using ANOVA or regression analysis[ citation needed]. It is relatively easy to estimate the main effect for a factor. To compute the main effect of a factor "A", subtract the average response of all experimental runs for which A was at its low (or first) level from the average response of all experimental runs for which A was at its high (or second) level.