Using the time series data in the table. respond to the following items. Period Sales $1, 961 1. 129 841 1,344 1, 012 793 682 712 646 10 686 11 909 12 469 13 566 14 488 15 688 16 675 17 305 18 381 Click here for the Excel Data File 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 2 1, 129 841 1,044 1,012 703 682 712 646 10 686 11 909 12 489 13 566 488 15 688 16 675 17 305 18 381d-3. II.I".."hat is the trend equation based on the regression analysis?I {Pound your answer: ta 2 decimal place-s.) -:I: e. What is the predicted annual change of industry,r sales? {Pound your answer la 2 decimal places} f. Predict sales for the next three periods. [Round your answer: La 2 decimal places.} Sales {19: Sales {20: Sales {21