A textbook publishing company has compiled data on total annual sales of its business textbooks for the preceding elght years: a.1. Select the correct data chart and fit an approprlate model to it. (Click to select a-2. Forecast the preceding elght years, and determine the forecast errors. (Negatlve answers should be indlcated by a minus sign. Do not round Intermedlate calculations and round your final answer to 2 decimal places.) a.2. Forecast the preceding elght years, and determine the forecast errors. (Negatlve answers should be Indlcated by a minus sign Do not round Intermedlate calculations and round your final answer to 2 decimal places.) a-3. Construct 2s control IImits. (Round the final answer to 2 decimal places.) 2s control llmits are b. Using the model, forecast textbook sales for each of the next five years. (Round the final answers to 1 decimal place.) a.3. Construct 2s control llmits. (Round the final answer to 2 decimal places.) 2s control limits are b. Using the model, forecast textbook sales for each of the next five years. (Round the c. Suppose actual sales for the next five years turn out as follows: Calculate the forecast errors for years 9 to 13 . Is the forecasting process in control