Six Sigma Six Sigma Certifications CLSSBB Questions & Answers

• Question 241:

  On a _________________ one can see a pattern from the graphed points such that conclusions can be drawn about the largest family of Variation.

  A. Multi-Vari Chart

  B. Weighted Scale

  C. X-Y Matrix

  D. Poisson Chart

  Correct Answer: A

• Question 242:

  From the variance F-test shown above, which of these conclusions is/are valid?

  

  A. The variance between the class score distribution is not significantly different

  B. This test applies only to Normal Distributed data at 99 % confidence

  C. The variance between the class score distribution is significantly different

  D. There are not enough data points to make any statistical conclusions

  Correct Answer: C

• Question 243:

  To establish a sample size that will allow the proper overlap of distributions we do which of these?

  A. Multiply Alpha by 1.75

  B. Calculate one minus Beta

  C. Calculate Beta plus 2

  D. Multiply Beta by 3

  Correct Answer: B

• Question 244:

  The validity of the decision made with Hypothesis Testing is dependent upon all of the following except ______________________.

  A. Beta risk

  B. Range of data

  C. Alpha risk

  D. Sample size

  Correct Answer: B

• Question 245:

  To be an effective Lean Six Sigma practitioner one must understand the difference between ___________________________.

  A. ANOVA and the Analysis of Variance

  B. Nonparametric tests and tests of Non-normal Data

  C. Practical and Statistical significance

  D. F-test and test of variances of 2 samples

  Correct Answer: C

• Question 246:

  Statistical Difference is the magnitude of difference or change required to distinguish between a true difference, brought about by change or improvement, and one that could have occurred by chance.

  A. True

  B. False

  Correct Answer: A

• Question 247:

  When conducting a Hypothesis Test using Continuous Data the proper sample size is influenced only by the extent to which we need to assess a Difference to be detected but not the inherent variation in the process.

  A. True

  B. False

  Correct Answer: B

• Question 248:

  If the results from a Hypothesis Test are located in the "Region of Doubt" area, what can be concluded?

  A. Rejection of the Alpha

  B. We fail to reject the Null Hypothesis

  C. The test was conducted improperly

  D. We reject the Null Hypothesis

  Correct Answer: D

• Question 249:

  Following process modifications, the Null Hypothesis states that no improvement to the process has occurred. If we discover the Null Hypothesis Test was rejected when it was false, that would be a(n) _______________.

  A. Type I Error

  B. Type II Error

  C. Type III Error D. Alpha Error

  Correct Answer: B

• Question 250:

  For the data shown here which statement(s) are true? (Note: There are 2 correct answers).

  

  A. With 95% confidence, we cannot conclude if the samples are from three Normal Distributions

  B. With greater than 95% confidence, we conclude the samples are from Non-normal Distributions

  C. If we wanted to compare the Central Tendencies of these three samples we would use the one-way ANOVA test

  D. If we wanted to compare the Central Tendencies of these three samples we could use Mood's Median test

  E. If we wanted to compare the Central Tendencies of all three samples we could use the Mann-Whitney test

  Correct Answer: BD