Answered: Week Sales Week Sales 2750 7 3300 3100…

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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Question

United Dairies, Inc., supplies milk to several independent grocers throughout Dade
C ounty, Florida. Managers at United Dairies want to develop a forecast of the number of
half gallons of milk sold per week. Sales data for the past 12 weeks are:

a. Construct a time series plot. What type of pattern exists in the data?
b. Use exponential smoothing with a 5 0.4 to develop a forecast of demand for week 13.
What is the resulting MSE?

Week
Sales
Week
Sales
2750
7
3300
3100
8
3100
3
3250
9
2950
4
2800
10
3000
5
2900
11
3200
3050
12
3150

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