### Regression Line and R2

1. Consider the following data table. Compute the regression line if z on x. z 50 67 70 90 95 101 x 3 4 7 10 12 13 2. Consider the following data table which consists of the data from problem 1 and a second set. Compute the regression line of z on x and y. How much has the adjusted R2 increased from problem 1? z