3. Suppose we have the following data for the number of daily visitors to a website over a 7-day period: Day 1 2 3 4 5 6 7 a. Calculate a 3-day moving average for this data. sted moving Visitors 55 54 67 89 110 105 109 ortims data. c. Calculate Exponential Smoothing for a=0.8. d. Calculate the MAE, MSE and MAPE for Weighted moving average.

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