Changed CSSBB Exam Questions

Six Sigma Black Belt Certification Questions and Answers

Question 9

Which statement is most correct for the Regression Analysis shown here?

The Regression explains 50.8% of the process variation

The air-fuel ratio explains most of the TurbineOutput variation

This Simple Linear Regression explains 98+% of the process variation

This Multiple Linear Regression has four statistically significant independent variables

Question 10

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

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

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

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

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

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

Question 11

Accuracy can be assessed in several ways and a fairly accurate means of measurement is visual comparison.

True

False

Question 12

Which statement(s) are most correct for the Regression Analysis shown here?

The Regression explains 50.8% of the process variation

The air-fuel ratio explains most of the TurbineOutput variation

This Simple Linear Regression explains 98+% of the process variation

This Multiple Linear Regression has four statistically significant independent variables