STAT TECH IN BUSINESS & ECON LL\AC
STAT TECH IN BUSINESS & ECON LL\AC
18th Edition
ISBN: 9781264720545
Author: Lind
Publisher: MCG
Question
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Chapter 18, Problem 31CE

a.

To determine

To graph: The provided data set:

b.

To determine

To describe: The pattern of the time series.

c.

To determine

To explain: The reason for the appropriateness of using trend model in the provided case.

d.

To determine

To evaluate: The seasonally adjusted trend forecasting model. Also, find the MAD.

e.

To determine

To find: The predicted annual change of industry sales

f.

To determine

To find: The predicted sales for next 3 months.

h.

To determine

To explain: If the made forecasts are good or not.

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Could you please answer this question using excel. For 1a) I got 84.75 and for part 1b) I got 85.33 and was wondering if you could check if my answers were correct. Thanks
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