Business 9609 · AS & A Level · Location and scale

Location and scale — practice question

(a)

Consult the table in Appendix 1. Calculate:

  • the centred quarterly moving average in quarter 3, 2018 [3]
  • the seasonal variation in quarter 3, 2015 [2]
(b)[3]

Look at the table and graph in Appendix 1. Calculate SWF’s forecast sales for Quarter 3 in 2019.

(c)[12]

Refer to your result from 4(b). Discuss the usefulness of sales forecasts to SWF when making marketing and operational decisions.

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