4. Use a spreadsheet template to see how long it takes for the effects of an initial forecast to “wash out.” You can develop another template, or you can use the one developed for problem 2, but you will not need all the columns. Use an a of 0.3 and an initial forecast of 350 (your instructor may give you different values of the initial forecast).

How many months does it take until the forecast with an initial value of 350 rounds to the same integer as the forecast made when an initial forecast of 447 was used?