Question 3: Find the "Alabama" file. The values of Alabama building contracts (in millions of dollar) for a 12-month period are in the file. Develop the exponential smoothing with the alpha value of 0.30. 1. What is the forecast for December? (Make sure no decimal place.) 2. What is the value of MSE (mean squared error)? (Make sure no decimal place and no comma. EX: 1234) 3. What is the optimal alpha value to minimize inaccuracy? (Make sure two decimal places.) . B D E 1 2 3 4 5 6 7 Month Value of Contract 1 240 2 350 3 230 4 260 5 280 6 320 7 220 8 310 9 240 10 310 11 240 12 230 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23