CSSBB Practice Test

CSSBB Practice Test practice questions, page 9 of 9, with answer review and explanations.

Question 41

Which statement(s) are incorrect for the Regression Analysis shown here? (Note: There are 2 correct answers).

  1. The air-fuel ratio explains most of the TurbineOutput variation
  2. The Regression explains over 98% of the process variation
  3. This Multiple Linear Regression has three statistically significant independent variables
  4. If the air-fuel ratio increases by 1, the TurbineOutput more than triples
  5. The SteamExitTemp explains the most variation of the TurbineOutput

Question 42

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

  1. The Regression explains 50.8% of the process variation
  2. The air-fuel ratio explains most of the TurbineOutput variation
  3. This Simple Linear Regression explains 98+% of the process variation
  4. This Multiple Linear Regression has four statistically significant independent variables