A manager has been using a certain forecasting technique to forecast demand for word processing units for the past ten periods. Actual and forecasted amounts are shown below. He had difficulties in identifying whether this technique is better than the second moving average. The best forecasting technique is Period 1 2 3 4 Demand 80 91 93 90 Forecasted 95 88 92 67 O both of the two technique O the manager's forecasting technique O the MA-2 technique none of the two technique