Answer the following questions please Question 11 5 points A

Answer the following questions please

Question 11 (5 points) Aresearcher wants to be able to predict first-semester grade point average with as much accuracy as possible, so she would like to use both high school grade point average and SAT score as predictor variables. Which of the following techniques would be most appropriate to make this prediction? O simple linear regression O proportionate reduction in error O multiple regression O standardized regression coefficient Save Question 12 (5 points) As the correlation coefficient becomes stronger, proportionate reduction in error: O becomes smaller. O becomes larger. O is unaffected. O becomes more variable.

Solution

11)

simple linear regression

12)

becomes smaller

15)

Rxy - Zx