Statistical Techniques in Business and Economics
Statistical Techniques in Business and Economics
18th Edition
ISBN: 9781260579611
Author: Douglas Lind; William Marchal; Samuel Wathen
Publisher: MCGRAW-HILL HIGHER EDUCATION
Question
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Chapter 18, Problem 2SR

a.

To determine

To draw: The graph of the given time series data.

b.

To determine

To describe: The given time series data.

c.

To determine

To explain: The reason that forecasting with forecasting with simple exponential smoothing is appropriate for the given time series.

d.

To determine

To calculate: The simple exponential smoothing forecast model with a smoothing constant of 0.2 and the forecasting error.

e.

To determine

To calculate: The forecast using simple exponential smoothing forecast model with a smoothing constant of 0.2 .

f.

To determine

To calculate: The simple exponential smoothing forecast model with a smoothing constant of 0.3 and the forecasting error.

g.

To determine

To explain: The better of simple exponential smoothing forecast model with a smoothing constant of 0.2 or 0.3 .

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