The linear trend forecasting equation for an annual time series containing 43 values (from 1963 to 2005) on net sales (in billions of dollars) is shown below. Complete (a) through (e) below. Y. = 19+ 12X. a. Intepret the Y-intercept, bo. Which statement below is the interpretation of the Y-intercept? The Y-intercept bo = 1.2 indicates that sales are predicted to increase by $1.2 billion/year. The Y-intercept bo = 1.9 reflects the predicted net sales in 1963 The Y-intercept bo = 1.9 indicates that sales are predicted to increase by $1.9 billion/year. The Y-intercept bo = 1.2 reflects the predicted net sales in 1963 b. Intepret the slope, b, . Which statement below is the interpretation of the slope? The slope b. = 1.9 reflects the predicted net sales in 1963 The slope b, = 1.9 indicates that sales are predicted to increase by $1.9 billion/year. The slope b, = 1.2 reflects the predicted net sales in 1963 D.The slope b, = 1.2 indicates that sales are predicted to increase by $1.2 billion/year. c. What is the fitted trend value for the third year? billion Simplify your answer.)