(a) (i) Using the data in Table 1.2, calculate the average seasonal variation for Quarter 4. (ii) Jon has calculated the trend for 2025 Quarter 4 as $21.41 million. Using your answer to (a)(i), calculate forecast sales for 2025 Quarter 4. (b) Evaluate whether time series analysis is sufficient to allow WS to make decisions to achieve its marketing objective.
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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