Practice with Bivariate Regression



Practice with Bivariate Regression

1. Here’s the output from an analysis using GREA to predict 1st year GPA

2. Here’s the output from using undergraduate GPA to predict GREQ

-----------------------

a. Is this a useful predictor?

b. Interpret the regression weight for GREQ

c. Write out the regression formula

y’ = (.00464 * GREQ) + .634

a. Is this a useful predictor?

d. Interpret the regression weight for undergraduate gpa

If GPA increase by 1, GREQ is expected to increase by 40.66.

e. Write out the regression formula

y’ = (40.66 * GREQ) + 306.359

Yes, the correlation is significant

If GREQ increases by 1, GRE is expected to increase by .00466.

Yes, the correlation is significant

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download