Managing Supply Chain and Operations 1st Edition by Thomas Foster ,Scott Sampson,Cynthia Wallin,Scott Webb

Exercise 5

The demand for a consumer product is fairly constant from week to week. The previous nine weeks of demand is shown below.
(Note:a t is the actual period's demand.)
Use the information to produce a single exponential smoothing forecast for period 10 using a smoothing constant, a t equal to 0.30. Use 455 as the initial forecast.