Weekly demand figures at Mamma’s Pizza are as shown. Estimate demand for the next 4 weeks using a 4-week moving average as well as simple exponential smoothing with α = 0.1. Evaluate the MAD, MAPE, MSE, bias, and TS in each case. Which of the two methods do you prefer? Why?

Figure Mamma's Pizza

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Week 1 Demand ($) 108 2 116 3 118 4 124 5 96 6 7 8 9 10 11 119 19 96 102 112 102 92 22 12 91