Consider the following time series: Demand Quarter Year 1 Year 2 Year 3 1 6 8 7

Question:

Consider the following time series:

Demand Quarter Year 1 Year 2 Year 3 1 6 8 7 2 11 14 15 3 9 10 14 4 5 7 9

a. Forecast the demand for each quarter in Year 4 using multiplicative decomposition.

b. Interpret the meaning of the seasonal components.

c. Calculate the MAD for this forecast.

AppendixLO1

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Business Statistics

ISBN: 9780133852288

2nd Edition

Authors: Robert A Donnelly, Robert Donnelly Jr

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