The High-Volt Electric Company has a difficult time predicting the quarterly sales for its room air conditioner
Question:
Quarterly sales data for the last three years are shown as follows:
a. Determine the best straight-line trend using simple regression analysis.
b. Determine the seasonal indices for each quarter using the trend line values in your seasonal index computations.
c. By means of classic time series decomposition, forecast the sales for the next four quarters.
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Related Book For
Business Logistics Supply Chain Management
ISBN: 978-0130661845
5th edition
Authors: Ronald H. Ballou
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