The sales (in $'000) of CBO by a large department store for each period of three months are as follows. Quarter 20X4 First Second Third Fourth Required (a) Using an additive model, find the centred moving average trend. (b) Find the average seasonal variation for each quarter. (c) Predict sales for the last quarter of 20X7 and the first quarter of 20X8, stating any assumptions Show your workings more so in part b 20X5 8 30 60 20 20X7 40 62 92 20X6 20 50 80 40 24

The sales (in $'000) of CBO by a large department store for each period of three months are as follows. Quarter 20X4 First Second Third Fourth Required (a) Using an additive model, find the centred moving average trend. (b) Find the average seasonal variation for each quarter. (c) Predict sales for the last quarter of 20X7 and the first quarter of 20X8, stating any assumptions Show your workings more so in part b 20X5 8 30 60 20 20X7 40 62 92 20X6 20 50 80 40 24

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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