Six Sigma Six Sigma Certifications CLSSBB Questions & Answers

• Question 481:

  A team wants a technique for improving consistency of assembly operations. They should use:

  A. written and diagrammed work instructions

  B. flow charts and process maps

  C. cause and effect diagrams

  D. Pareto chart

  E. relationship matrix

  Correct Answer: A

• Question 482:

  An automatic gaging system is to be installed in a process. The gage will insert data values into a data base from which machine adjustments will be made automatically. A critical factor in specifying the equipment is:

  A. communication link between gage and computer

  B. compatibility of software in the gage and in the computer

  C. adequate manual over-rides

  D. all of the above

  Correct Answer: D

• Question 483:

  The median is a better choice than the mean for a measure of central tendency if the data:

  A. is bimodal

  B. often has outliers

  C. is normally distributed

  D. is exponentially distributed

  Correct Answer: B

• Question 484:

  A team wants a technique for determining and displaying priorities based on frequency of various defect types. They should use:

  A. written and diagrammed work instructions

  B. flow charts and process maps

  C. cause and effect diagrams

  D. Pareto chart

  E. relationship matrix

  Correct Answer: D

• Question 485:

  A population is bimodal with a variance of 5.77. One hundred samples of size 30 are randomly collected and the 100 sample means are calculated. The standard deviation of these sample means is approximately:

  A. 5.77

  B. 2.40

  C. 1.05

  D. 0.44

  E. 0.19

  Correct Answer: E

• Question 486:

  If the probability that event A occurs is .51, the probability that event B occurs is .64 and events A and B are statistically independent then:

  A. A and B are mutually exclusive

  B. the probability that both A and B occur is 0.3264

  C. A and B can't both occur

  D. the probability that A occurs is 1-(probability that B occurs)

  E. A and B have different standard deviations

  Correct Answer: B

• Question 487:

  A population is bimodal. One hundred samples of size 30 are randomly collected and the 100 sample means are calculated. The distribution of these sample means is:

  A. bimodal

  B. approximately exponential

  C. approximately Poisson

  D. approximately normal

  E. approximately uniform

  Correct Answer: D

• Question 488:

  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:

  A. events A and B are complementary

  B. events A and B are mutually exclusive

  C. events A and B are supplementary

  D. events A and B are not mutually exclusive

  E. events A and B are statistically independent

  Correct Answer: D

• Question 489:

  If the probability that an event will occur is 0.83, then the probability that the event will not occur is:

  A. 0.17

  B. 0.07

  C. 0.6889

  D. 1.20

  E. 83%

  Correct Answer: A

• Question 490:

  Deming called the technique of studying a sample to gain understanding of the distribution of a population an "enumerative study." His main objection to these studies was:

  A. they are too difficult to perform correctly

  B. they require extensive use of computers

  C. they assume a stable distribution

  D. random samples are expensive to obtain

  E. these studies have a high probability of Type II error

  Correct Answer: C