CSSBB Free Practice Test

- (Topic 2)
An full factorial experiment has three factors. Each factor has three levels. The number of test combinations or runs is:

1. A. 9
2. B. 6
3. C. 27
4. D. 36
5. E. 33

Correct Answer: C

- (Topic 1)
If the probability that event A occurs is 0.51, the probability that event B occurs is 0.64 and that probability that both A and B occur is 0.23 then:

1. A. events A and B are complementary
2. B. events A and B are mutually exclusive
3. C. events A and B are supplementary
4. D. events A and B are not mutually exclusive
5. E. events A and B are statistically independent

Correct Answer: D

- (Topic 2)
Successful Six Sigma projects always:

1. A. use designed experiments
2. B. impact the bottom line of the enterprise
3. C. are completed in a short time frame
4. D. all of the above
5. E. none of the above

Correct Answer: B

- (Topic 2)
A team wants a technique for obtaining a large number of possible reasons for excess variation in a dimension. They should use:

1. A. written and diagrammed work instructions
2. B. flow charts and process maps
3. C. cause and effect diagrams
4. D. Pareto chart
5. E. relationship matrix

Correct Answer: C

- (Topic 1)
This table displays the inventory of fasteners in a storage cabinet. An item is selected at random from the fastener cabinet. Find the approximate probability it is a bolt.

1. A. 160
2. B. .160
3. C. .09
4. D. .30
5. E. none of the above

Correct Answer: D