b-1. Use the 3-period moving average to make in-sample forecasts. (Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) t Yt 1 11 2 10 3 13 4 9 5 10 6 11 7 11 8 8 9 10 11 12 11 b-2. Compute the resulting MSE and MAD. (Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) MSE MAD c. Make a forecast for period 11. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) ŷt