The manager of a travel agency has been using a seasonally adjusted forecast to predict demand for packaged tours. The actual and predicted values are as follows: Period Demand Predicted 12345 132 114 194 200 154 150 91 102 83 80 6 132 140 7 126 128 8 130 124 9 95 99 10 149 150 11 95 94 12 85 76 13 127 140 14 134 128 a. Compute MAD for the fifth period, then update it period by period using exponential smoothing with a = .1. (Round your intermediate calculations and final answers to 3 decimal places.) t Period A Demand 1 132 23450 2 194 3 154 4 91 83 6 132 7 126 8 130 9 95 10 149 11 1234 95 85 127 134 MAD+ b. Compute a tracking signal for periods 5 through 14 using the initial and updated MADS. (Negative values should be indicated by a minus sign. Round your intermediate calculations and final answers to 3 decimal places.) A Period Demand Tracking Signal 1 132 2345 194 154 91 83 6 132 7 126 8 130 9 95 10 149 11 95 12 85 13 127 14 134