Question

Coefficientsa Standardized Coefficients Beta Unstandardized Coefficients Model Std. Error Be Consant00 56 174 6.204 1.095 863 469 2.695 169 593 680 120 ACTMathScore1.051 649 279 GPA a. Dependent Variable: ACTcompositescore 24. Write out the regression equation in the form of - a + math Xmath +bGPA XGPA (You can use the equation editor or write it out by hand) a. The a is the value on the "Coefficients" table in the (Constant) row and B Unstandardized Coefficients column. This is the y-intercept. Coefficients column. This is the slope for the ACTMath Score variable. Coefficients column. This is the slope for the GPA variable. b. The bynath is the value on the "Coefficients" table in the ACTMath Score row and B Unstandardized c. The bGPa is the value on the "Coefficients" table in the GPA row and B Unstandardized 25. Compare and contrast the simple linear regression model (with the single IV) to the multiple linear regression model (with two IVs). a. How did the y-intercept change? b. How did the slope of the ACTMath Score change? c. How did the value of RI change?

Answer 1

a)

У 469 1 051 * Xmath 649 * XGPd

469 is the intercept.

1051 is the slope of X_math.

649 is the slope of X_GPA.

All the data is taken from the unstandardized column.