The following data set gives the bone strengths of the dominant and the nondominant arms for 15 men who were controls in a study. The least-squares regression line for these data is dominant = 2.74 + (0.936 x nondominant). Calculate the residual for ID 9. Would you be concerned that the least-squares regression equation would not be accurate for each of these values of nondominant arm strength: 8, 15, 20, 5, 30? (Prediction or Extrapolation as the answer for each value)