Six Sigma Six Sigma Certifications CLSSBB Questions & Answers

• Question 231:

  A ___________ problem in the Measurement System suggests that there is a lack of consistency in the measurement over time.

  A. Linearity

  B. Bias

  C. Stability

  D. Magnitude

  Correct Answer: C

• Question 232:

  A statistical test or Hypothesis Test is performed to reject or fail to reject a stated hypothesis and it converts the Practical Problem into a Statistical Problem.

  A. True

  B. False

  Correct Answer: A

• Question 233:

  The class score distribution of schools in a metropolitan area is shown here along with an analysis output. Comment on the statistical significance between the Means of the two distributions. Select the most appropriate statement.

  

  A. The two class Means are statistically different from each other

  B. The two class Means statistically not different from each other

  C. Inadequate information on class Means to make any statistical conclusions

  D. A visual comparison shows that class Means are not statistically different

  Correct Answer: A

• Question 234:

  The Central Limit Theorem says that as the sample size becomes large the sample Mean distribution will form a Normal Distribution, ____________________.

  A. If the Measurement System is properly calibrated

  B. When the data is collected accurately

  C. If the shape is evenly spread

  D. No matter what the shape of the population distribution of individuals

  Correct Answer: D

• Question 235:

  For a Normal Distribution as samples size increases the Range in Mean and Standard Deviation decrease relative to the Mean and Standard Deviation of the population.

  A. True

  B. False

  Correct Answer: A

• Question 236:

  From this list select the best example of Bias in Sampling.

  A. Testing the completeness of cooking a cake but the testers cannot agree on how to measure internal temperature

  B. Testing the sharpness of a razor blade while the sample of 500 are from the same model razor

  C. Testing the weight of participants at a wrestling event and only measuring those who finished second or better

  D. Testing a hand-held GPS models for durability using samples only from Nokia Model P120

  Correct Answer: C

• Question 237:

  For a batch manufacturing process, while assessing short term process variation, which variation category(ies) should one need to focus on? (Note: There are 2 correct answers).

  A. Variation within consecutive pieces

  B. Variation among consecutive batches

  C. Variation among groups of pieces

  D. Variation among the completed product

  Correct Answer: AB

• Question 238:

  When the Inputs, X's, for your process are Normally Distributed about the Mean, the Outputs, Y's, will be Normally Distributed.

  A. True

  B. False

  Correct Answer: B

• Question 239:

  Some of the sources for different types of error that can be quantified using Statistical Analysis are which of these?

  A. Error in sampling

  B. Bias in sampling

  C. Error in measurement

  D. All of the above

  Correct Answer: D

• Question 240:

  Time is always the metric on the horizontal scale of a(n) ___________ Chart.

  A. Pareto

  B. Xbar

  C. Multi-Vari

  D. NP

  Correct Answer: C