Given the following demand data, compute a simple exponential smoothing forecast for alpha values of 0.3 and 0.5 . Use the actual value in Period 1 as your starting forecast in Period 2 . (Round all your calculations to two declmal points.) Given the following demand data, compute a simple exponential smoothing forecast for alpha values of 0.3 and 0.5 . Use the actual value in Period 1 as your starting forecast in Period 2 . (Round all your calculations to two declmal points.)