Weekly demand for an item averaged 100 units over the past year. Actual demand for the next eight weeks is shown in what follows:
a. Plot the data on graph paper.
b. Letting α = 0.25, calculate the smoothed forecast for each week.
c. Comment on how well the forecast is tracking actual demand. Is it lagging or leading actual demand?
![95_9011b341-6189-4963-aa24-58aa558d4590.png](https://secure.tutorsglobe.com/CMSImages/95_9011b341-6189-4963-aa24-58aa558d4590.png)