Response to the following MCQ's:
Question 1. ISO 9001:2008 standards provide strict guidelines for how products are to be produced.
True
False
Question 2. The central line on a p-chart is 0.50 with a UCL of 0.65 and an LCL of 0.35. The results of the next six samples are 0.60, 0.37, 0.45, 0.48, 0.45, and 0.42. What should you do?
Nothing; the process is behaving as expected.
Explore the assignable causes because three observations are above the central line.
Explore assignable causes because there is a run.
Increase the sample size to get a better measure.
Question 3. The Baldrige Performance Excellence Program considers a company's business results but ISO 9001:2008 registration does not.
True
False
Question 4. The underlying statistical distribution for the p-chart is:
Poisson.
binomial
percentage.
normal.
Question 5. The ISO 9001:2008 standard:
emphasizes corporate leadership as a means of determining who receives the award.
has the greatest number of points awarded for business results.
is awarded by the U.S. government each year.
addresses quality system documentation.
Question 6. Use the information from Table 5.3. What is the upper control limit (UCL) if the bank were to use z = 2 and a sample size of 100?
Table 5.3
|
Sample Number
|
Number Defective
|
|
1
|
1
|
|
2
|
4
|
|
3
|
4
|
|
4
|
4
|
|
5
|
0
|
less than or equal to 0.02
greater than 0.02 but less than or equal to 0.04
greater than 0.04 but less than or equal to 0.06
greater than 0.06
Question 7. A metal-cutting operation has a target value of 20 and consistently averages 19.8 with a standard deviation of 0.5. The design engineers have established an upper specification limit of 22 and a lower specification limit of 18. What is the process capability ratio?
1.20
1.33
1.46
1.66
Question 8. Historically, the average proportion of defective bars has been 0.015. Samples will be of 100 bars each. Construct a p-chart using z = 3. Suppose a sample had 0.07 defectives. What would you do?
Nothing; it is just random variation.
Look for assignable causes.
Change z to 2 and take another sample.
Change z to 4 and continue sampling.
Question 9. Samples of 100 checks each were taken at a bank from an encoding machine (which records the amount of a check) over a five-day period. Details are summarized in Table 5.3. If the bank were to use the average proportion defective from these five samples as the central line for a process control chart, what would be the central line?
Table 5.3
|
Sample Number
|
Number Defective
|
|
1
|
1
|
|
2
|
4
|
|
3
|
2
|
|
4
|
4
|
|
5
|
0
|
less than or equal to 0.01
greater than 0.01 but less than or equal to 0.02
greater than 0.02 but less than or equal to 0.03
greater than 0.03
Question 10. A metal-cutting operation has a target value of 20 and consistently averages 19.8 with a standard deviation of 0.5. The design engineers have established an upper specification limit of 22 and a lower specification limit of 18. What is the process capability index?
1.20
1.33
1.46
1.66