The ‘Liverpool Garden Centre’ is interested in forecasting the
sales of garden spades for the coming year. Based on the quarterly
sales figures for the previous two years, the garden centre expects to
sell around 405 spades in the coming year. The sales data exhibits a seasonal sales pattern. Table 1 below gives the last two years of sales data (Year 1 and Year 2).
Spades Sold Season Year 1 Year 2 Autumn 45 43 Winter 30 35 Spring 225 216 Summer 80 95 Table 1: Sales data for year 1 and year 2 (a) How
much can the garden centre expect to sell during each quarter of next
year (Year 3) accounting for seasonality? Your forecast must make use of seasonal indices. All workings must be shown in full.
(NOTE: Please round your calculations to three decimal places).
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