Question: Problem 12-22 (Algo) Given the model below: Period 1 4 5 6 7 8 9 10 11 Demand14e 150 180 180 210 220 170 240

Problem 12-22 (Algo) Given the model below:
Problem 12-22 (Algo) Given the model below: Period 1 4 5 6 7 8 9 10 11 Demand14e 150 180 180 210 220 170 240 160 190 250 011 81 87 98 75 price 49 41 88 45 88 98 48 PrictureClick here for the Excel Data File a. Compute the forecast for period 12 using a causal regression model and assuming that oll price for perlod 12 is 94. (Round regression coefficients and forecasts of demand to two decimal places.) Forocant for period 12 15. Create a graph of the gasoline sales and oil price data and include a line representing the regression model. In which period is gasoline sales least well predicted by oil price? What is the amount of this largest orror? (Use your rounded regression coefficients and errors from Port a. Round your largest error answer to 2 decimals. Include the negative sign if that largest error is negative.) Largest error in in period

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