A study of 427 college students was conducted to test whethe

A study of 427 college students was conducted to test whether high school GPA is a predictor of first-year college GPA.

colgpa=   Grade point average in college (Range 0.853.97 )
hsgpa =   High school GPA (Range 2.294.5 )

Model 1: OLS, using observations 1-427

Dependent variable:   colgpa

R-squared:   0.854880

Write the equation for the least-squares regression line:   yˆ=     +     x

The null hypothesis is:       (pick one) =    0

Calculate the   t-ratio =  .

The critical value for the   t   distribution ( =0.05 and N2   df) is   

Can we reject the null hypothesis? yes or no

Solution