A Logistics company records of packages delivery during the last 6 weeks are indicated as follows: Week 1 2 3 4 5 6 Packages 120 240 300 190 200 390 (i) Compute the forecast order for week 7 by using a moving average with average period equal to 4. (ii) If the forecasting request changes to 'naive approach', find the forecast for week 7. (iii) Using exponential smoothing predictions and a starting forecast for week 2 which equals the actual data, find the exponentially smoothed forecast for week 5.