(a)
- Using the data in Table 1.2, Calculate the average seasonal variation for Quarter 4. [2]
- Jon has worked out the trend for 2025 Quarter 4 as $21.41 million. Using your answer to (a)(i), Calculate forecast sales for 2025 Quarter 4. [2]
(b)[12]
Evaluate whether time series analysis is sufficient to allow WS to make decisions in order to achieve its marketing objective.