need help

b... 0 Saved ve & Exit Submit Problem 3-28 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 131 113 191 200 151 150 86 102 81 80 126 135 121 128 134 99 109 150 11 154 109 94 129 139 94 80 140 128 14 a. Compute MAD for the fifth period, then update it period by period using exponential smoothing with a = .05. (Round your intermediate calculations a. Compute MAD for the fifth period, then update it period by period using exponential smoothing with a = .05. (Round your intermediate calculations and final answers to 3 decimal places.) Period MADE Demand 131 191 151 | 86 81 126 121 134 | 99 154 109 94 129 139 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.) t Period Tracking Signal A Demand 131 191 151 86 81 126 121 134 99 154 109 94 129 139