For Exercises 25–36, do the following for the indicated data:

  1. Predict the value of for the given value of .
  2. Calculate and interpret the prediction error.
  3. State whether or not the prediction represents extrapolation.

Question 4.129

31. Data from Exercise 19;

4.2.31

(a) (b) The data point lies below the regression line, so the actual -value of 5 is less than the predicted -value of 12.5. (c) Does not represent extrapolation