Question

Given the series of demand data below Period: 1 2 3 4 5 6 7 8...

Given the series of demand data below

Period: 1 2 3 4 5 6 7 8 9 10
Demand: 41 31 51 45 23 48 33 43 29 38

  

a. Calculate the forecasts for periods 7 through 11 using moving average models with n = 2, n = 4, and n = 6. (Round your intermediate calculations and final answers to 1 decimal place.)



b-1. Calculate the bias and MAD for each set of forecasts. (Negative answers should be indicated by a minus sign. Round your intermediate calculations and final answers to 1 decimal place.)


b-2. Which moving average model is best with respect to MAD?

2-week moving average
6-week moving average
4-week moving average
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