Two different forecasting techniques were used to forecast demand for cases of bottled water in a store. Actual demand and the two sets of forecasts for seven periods are as follows: Forecast Demand Period Demand F1 F2 1 69 71 70 2 76 72 73 3 72 73 73 4 76 74 76 5 70 74 76 6 73 75 73 7 79 76 77 a-1. Calculate the MAD for each set of forecasts. (Round the final answers to 2 decimal places.) F1 F2 a-2. Which technique appears to be more accurate? b-1. Calculate the MSE for each set of forecasts. (Round the final answers to 2 decimal places.) F1 F2 b-2. Which technique appears to be more accurate? c-1. Calculate the MAPE for each set of forecasts. (Round the final answers to 2 decimal places.) F1 % F2 % c-2. Which technique appears to be more accurate? d-1. Do all three of forecast errors provide the same conclusion (i.e., are they consistent) in this case? d-2. Do you expect consistent results in every case? , will have lower MSE than if obs 7 for F1 was 81. e. In practice, either MAD, MSE, or MAPE would be employed to compute a measure of forecast errors. What factors might lead a manager to favour one? MAD MSE MAPE