Question: solve it using excel alpha is=0.1 5. A method of estimating MAD is to compute it each time a new demand is observed using the

solve it using excel

alpha is=0.1

5. A method of estimating MAD is to compute it each time a new demand is observed using the following formula: MAD, = a e: + (1-a) MAD-1 Consider the one-step ahead forecasts for the following data for the quarters 2 through 8 and determine the MAD values using the usual procedure and the MAD based on the above formula assuming an initial MAD=50 in period 1. Compare and discuss the advantages and disadvantages of this last method compared to the usual procedure. Quarter: Engine failures: 1 2 3 4 200 250 175 186 5 6 7 8 225 285 305 190

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