Question: 4 10 points +Book Print References Problem 3-7 (Static) Freight car loadings over an 18-week period at a busy port are as follows: Week Week

4 10 points +Book Print References Problem 3-7 (Static) Freight car loadings over an 18-week period at a busy port are as follows: Week Week Week Number Number 220 Number 350 7 13 450 245 8 360 14 475 3 280 9 400 15 500 4 275 10 380 16 510 5 300 11 420 17 525 6 310 12 450 18 541 Click here for the Excel Data File a. Determine a linear trend line for expected freight car loadings. (Round your intermediate calculations and final answers to 2 decimal places) b. Use the trend equation to predict expected loadings for weeks 20 and 21. (Round your final answers to 2 decimal places) The forecasted demand for week 20 and 21 and respectively CROOND

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