Given the following data, answer the questions below: Month Actual demand 1 65 2 80 3 60 4 75 5 85 6 a) Forecast the demand for month 6 using three-month weighted moving average based on the following weights: 7, 5, and 3 (largest weight is for most recent data). b) Assume that the forecast for month 5 was 82 units. If the firm uses exponential smoothing with an alpha value of 0.20, what should be the forecast for month 6? c) Use exponential smoothing with trend adjustment to forecast demand for month 6. Let alpha = 0.2, beta = 0.5, and let the trend for month 5 be 4 and the smoothed forecast for month 5 be 87