- (Topic 1)
(Refer to the previous problem) To estimate the within treatment variance the experimenters would calculate the variances of:

1. A. all 80 readings
2. B. the five replications for each run
3. C. the runs for which a factor is at its lowest level

Correct Answer: B

- (Topic 2)
This QFD matrix was used in the design process for a ball point pen. What symbol is appropriate for the square labeled 4?

A.
B.
C.

1. A. none of the above

Correct Answer: B

- (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 a median chart.

1. A. 12.52 and 12.72
2. B. 12.54 and 12.70
3. C. 0.02 and 0.33
4. D. none of the above

Correct Answer: A

- (Topic 2)
This QFD matrix was used in the design process for a ball point pen. What symbol is appropriate for the square labeled 16?

A.
B.
C.

1. A. none of the above

Correct Answer: C

- (Topic 2)
A process produced 1394 units. During this time 11 defects were detected. The Rolled Throughput Yield ( RTU) is approximately:

1. A. 0.992
2. B. 7.89
3. C. 0.00789
4. D. 1.008
5. E. all of the above
6. F. none of the above

Correct Answer: A