The Super Snow paint shop has recorded the demand for a particular colour during the past 6

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The Super Snow paint shop has recorded the demand for a particular colour during the past 6 weeks as shown below.

Week Demand in Litre 1st Week May 19 2nd Week May 17 3rd Week May 22 4th Week May 27 1st Week June 29 2nd Week June 33

(a) Calculate a 3-week moving average for the data to forecast demand for the next week.

(b) Calculate a weighted average forecast for the data, using a weight of 0. 6 for the most recent data and weights of 0. 3 and 0. 1 for successive older data.

AppendixLO1

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