The demand for automobiles at Crescent Auto Dealers for the last 8 weeks is as follows:

1. Develop a 3-week moving average forecast for weeks 4 through 9.

2. Develop a 3-week weighted average forecast for weeks 4 through 9 with weights of W₁ = 0.6, W₂ = 0.3, and W₃ = 0.1. (The most recent week is assigned the highest weight, and weights assigned to past weeks decline progressively).

3. Use the MAD to determine which of the two forecasting methods is more accurate.

4. What is the naïve forecast for week 9?

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Week 3 6. Auto Demand 12 10 12 11 13 2. 1.