Question

Using a sample of recent university graduates, you estimate a simple linear regression using initial annual salary as the dependent variable and the graduate's weighted average mark (WAM) as the explanatory variable. If the regression model has an estimated intercept of 2200 and an estimated slope coefficient of 550, what is the predicted starting salary of a student with a WAM of 82?

Answer 1

Substitute 82 for x into the equation and solve for y.

Regression equation is predicted y = a + bx
...where a represents the y-intercept and b the slope.

With your data:
y = 2200 + 550(82)

I'll let you take it from here.

Answer 2

47300