please do 18 and 20

Question 18 (5 points) Saved Exhibit 3. In a regression model involving 24 observations, the following estimated regression equation was obtained: y = 29 + 18x1 +43x2 + 87x3 For this model, SSR = 300 and SSE = 200. Refer to Exhibit 3. The coefficient of determination for the above model is a) .33 Ob).25 c) .75 d) .60 Question 20 (5 points) Exhibit 3. In a regression model involving 24 observations, the following estimated regression equation was obtained: = 29 + 18x1 +43x2 + 87x3 For this model, SSR = 300 and SSE = 200. Refer to Exhibit 3. The computed F statistic for testing the significance of the above model is a) 15 b) .30 c) 10.00 d) 12.00