The graph below contains three lines. One line is the actual sales, one line is forecast with exponential smoothing and an alpha value of 0.3 and one line is a forecast with exponential smoothing and an alpha value of 0.7. Which line is which? 370 350 330 310 290 270 250 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Series1 Series2 Series There is not enough information provided to answer Series 1 is alpha =0.7, series 2 is alpha = 0.3, series 3 is actual. = Series 1 is actual, Series 2 is alpha =0.3, series 3 is alpha =0.7. Series 1 is alpha = 0.3, series 2 is alpha =0.4, series 3 is actual. Series 1 is actual, series 2 is alpha =0.7, series 3 is alpha =0.3