Question: show all steps for part A 0 Suggested Problems Forecasting 1. Using the following data for TONS of coal, calculate by hand and using the

show all steps for part A show all steps for part A 0 Suggested Problems

0 Suggested Problems Forecasting 1. Using the following data for TONS of coal, calculate by hand and using the computer (Highlight solution on output) answer the following questions. Year 1 2 3 4 5 Demand 15 16 18 20 19 a. Naive forecast for 7 year. Calculate the MAD for this method b. Calculate the 3 year moving average, and MAD. What is the forecast for the 7th year? Calculate the MAD for this method c. Calculate the 3 year weighted average. t-1 = .5. -E = 3. and t-3 = 2. and MAD. What is the forecast for the 7th year? Calculate the MAD for this method d. Calculate the exponential forecast using a smoothing constant of 1 and a forecast for the first year of 17 Calculate the MAD. What is the forecast for the year? Calculate the MAD for this method

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