Given the following data: What are the exponential smoothing forecasts for periods 2-5 using a -0.7? Use nave approach for 1 week Week 1 2 3 4 5 Demands 830 765 630 640 0.7 830.00 830.00 784.50 676.35 650.91 Calculations 830+0.7(830-830) 830 830+ 0.7(765-830)-784.50 784.50+ 0.7(630-784.50)=676.35 676.35+ 0.7(640-676.35) 650.91