Question: (b) From the historigram below, state the suitable model of time series can be use. (HINT: multiplicative model / additive model) 50 40 30

(b) From the historigram below, state the suitable model of time series can be use. (HINT: multiplicative

(b) From the historigram below, state the suitable model of time series can be use. (HINT: multiplicative model / additive model) 50 40 30 20 A MMM 10 01 2016 0401 2017 0401 03 04 2018 (2 marks) The seasonal indices calculated for a multiplicative model sometimes need slight adjustment due to the average of the seasonal indices should be 0. True or false? State reason. (3 marks)

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