NOTE: You will fill in the only the cells in grey. Use formulas for each calculation otherwise you will NOT be graded on those answers. Q2 In a few sentences, explain what insights can we learn from tracking the MAD/MSE/MAPE over a prolonged period of time? Insert answer here: Q3. Insert answer here: Q4. In a brief sentence, explain 1 disadvantage of using the simple moving average over the weighted moving average. Insert answer here: Q5. Insert answer here