2. Fitting a straight line to a set of data yields the following prediction line. Complete (a) through (c) below. Y 1 = 20 - 0.7X a. Interpret the meaning of the Y-intercept, bo- Choose the correct answer below. O A. The Y-intercept, bo = - 0.7, implies that when the value of X is 0, the mean value of Y is - 0.7. O B. The Y-intercept, bo = 20, implies that when the value of X is 0, the mean value of Y is 20. O C. The Y-intercept, bo = 20, implies that the average value of Y is 20. O D. The Y-intercept, bo = 20, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 20 units. b. Interpret the meaning of the slope, b1. Choose the correct answer below. O A. The slope, by = 0.7, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 0.7 units. O B. The slope, by = 20, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 20 units. O C. The slope, by = - 0.7, implies that the average value of Y is - 0.7. O D. The slope, by = - 0.7, implies that for each increase of 1 unit in X, the value of Y is estimated to decrease by 0.7 units. c. Predict the mean value of Y for X = 5. Y . = (Type an integer or a decimal.)