Question: A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: a. Using an appropriate model,

A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations to decimal places and final answers to 2 decimal places.) b. Compute +/2s control limits for the control chart for forecast errors using just data from the original nine periods. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.) A textbook publishing company has compiled data on total annual sales of its business texts for the preceding nine years: a. Using an appropriate model, forecast textbook sales for each of the next five years. (Round your intermediate calculations to decimal places and final answers to 2 decimal places.) b. Compute +/2s control limits for the control chart for forecast errors using just data from the original nine periods. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.)
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