For Exercises 7–14, you are given the regression equation.

  1. Calculate the predicted values.
  2. Compute the residuals.
  3. Construct a scatterplot of the residuals versus the predicted values.
  4. Use technology to construct a normal probability plot of the residuals.
  5. Verify that the regression assumptions are valid.

Question 13.14

14.

1 6
2 5
2 4
2 3
3 2