Question 1 Actual sales and initial forecasts are given below. Your company is using alpha of 0.2 and beta of 0.4 for an adjusted exponential smoothing including trend model. Currently you have been asked to determine if the existing adjusted exponential smoothing including trend model should be used or a 3 period weighted moving average (use 0.5, 0.3, 0.2). a) Calculate the forecast for week 6 and 7 using both methods. [8 points) b) Using quantitative reasoning, which method would you recommend and why? |3 points) Use the table below as you need to answer the questions above. Actual Forecast Week Trend Adjusted Forecast (including Trend) Sales ES 1 12 11 2 13.00 2 2 17 12.80 1.92 14.72 3 20 15.18 2.10 17.28 4 19 17.82 2.32 20.14 5 5 24 19.91 2.23 22.14 6 21 7