Using the time series data in the table, respond to the following items. Period Sales $1, 001 1, 131 841 1, 044 DOYOUAWNP 1, 012 703 682 712 646 10 686 11 909 12 469 13 566 14 488 15 688 16 675 17 303 18 381d-2. What is the MAD? (Round your answer to 2 decimal places.) E d-3. What is the trend equation based on the regression analysis? (Round your answers to 2 decimal places.) -_I_ e. What is the predicted annual change of industry sales? (Round your answer to 2 decimal places} f. Predict sales for the next three periods. (Round your answers to 2 decimal places.) Predicted sales Sales (19) Sales (20) Sales (21)d-1. Compute all possible forecasts using a trend forecasting model using simple linear regression? (Round your answers to 2 decimal places.) Period Sales Predicted Sales Absolute Error - 1,001 N 1,131 3 841 1,044 5 1,012 6 703 7 682 8 712 9 646 10 686 11 909 12 469 13 566 14 488 15 688 16 675 17 303 18 381