For Exercises 23–37, follow these steps. You have already calculated the regression equation in Exercises 37–51 in Section 4.2. Do the following.

  1. Calculate the sum of squares error, SSE.
  2. Compute and interpret the standard error of the estimate, .
  3. Calculate the total sum of squares, SST.
  4. Find the sum of squares regression, SSR.
  5. Calculate and interpret the coefficient of determination, .
  6. Use to calculate and interpret the correlation coefficient, .

Question 4.228

27. Gardasil Shots and Age. See Exercise 41 in Section 4.2.

4.3.27

(a) 7.56875 (b) 0.972674 shot. The typical difference between the predicted number of shots and the actual observed number of shots is 0.972674. (c) 7.6 (d) 0.03125 (e) 0.0041. Therefore, 0.41% of the variability in the number of shots is accounted for by the linear relationship between the number of shots and age. (f) 0.0640. This value of is close to . We would therefore say that there is no linear relationship between the number of shots a child gets and the child's age.