Making Predictions from a Least-Squares Regression Line
Question 9 of 10 • CA-Statistics and Probability A
A popular board game manufacturer was interested in the relationship between the amount of time it takes to play a game and how well that game is rated among board game players. Information was collected on several board games and was used to obtain the regression equation ŷ = 27.273x + 18.182, where x represents the time it takes to play (in hours) and ŷ is the predicted rating of that game (in points). Which statement best describes the meaning of the slope of the regression line?
Answer
A
For each increase in rating by 1 point, the predicted hours of play increase by 18.182.
B
For each increase in rating by 1 point, the predicted hours of play increase by 27.273.
C
For each increase in hours of play by 1, the predicted rating of the game increases by 18.182 points.
D
For each increase in hours of play by 1, the predicted rating of the game increases by 27.273 points.