Suppose a four period weighted average is being used to forecast demand. Weights for the periods are: wt-4 = 0.1 we-3 0.2 wt-2 = 0.35 wt-1 = 0.35 Demand observed in the previous four periods was: At4 15835 At-3 = 15430 At-2 = 14526 1 14734 What will be the demand forecast for period t? (Keep one decimal place in your answer) Your