Use the following information to answer questions 40-50. The following regression output is for predicting the heart weight (in g) of domestic cats from their body weight (in kg). The coefficients are estimated using a dataset of 144 domestic cats. (Intercept) body wt s = 1.452 Estimate -0.357 Std. Error 0.692 t value Pr(>|t|) -0.515 0.607 4.034 0.250 16.119 0.000 R = 64.66% R2 = 64.41% adj Heart weight (g) 20- 15- 10- 5 2.0 2.5 3.0 Body weight (kg) 3.5 4.0 44. A randomly selected domestic cat has body weight 3 kg. Predict the heart weight of this cat using the model. 45. The actual heart weight of the cat in Question 43 is 8 g. Calculate the residual and explain what the residual means.