Using a four-month moving average on the data given in the spreadsheet, determine one-step-ahead and two-step-ahead forecasts for July through December 2016. Compare their performance. (Hint: In the one-step-ahead forecast, the forecast for July is based on the observed demands in March through June. The two-step-ahead forecast for July is based on the observed demands in February through May.)

Month	Demand
January	89
February	57
March	144
April	221
May	177
June	280
July	223
August	286
September	212
October	275
November	188
December	312

Answer rating: 100% (QA)

To calculate the onestepahead and twostepahead forecasts for July through December 2016 using a fourmonth moving average we need to follow these steps ... View the full answer