Given the following data, use exponential smoothing ( = 0.2) to develop a demand forecast for period 6. Assume the forecast for the initial period is 5. Period Demand 1 7 2 9 3 5 4 9 5 13 6 12 If the demand of period 6 turns out to be 12, what is the mean absolute deviation (MAD) ? Bold MAD equals Upper Sigma | Actual minus Forecast divided by n font size increased by 1 font size increased by 1 nothing