MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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a. Report the measure of accuracy: MAE. Round your answer to four decimals.
b. Report the measure of accuracy: RMSE. Round your answer to four decimals.
c. Report the measure of accuracy: MAPE expressed as a percent.
(Convert to a percent and round to two decimals. For instance, if your answer is 0.0123, it will become 1.23%, but do not type the percent sign, so it's just 1.23)
d. Using the trend equation developed, forecast revenue in year 11. Round the answer to four decimal places.
e. Does autocorrelation appear to be a problem? Plot the forecast error against the time variable. Compute the DW test statistic. (Round to three decimals.)
Transcribed Image Text:Giovanni Food Products produces and sells frozen pizzas to public schools
throughout the eastern United States. Using a very aggressive marketing
strategy
they have been able to increase their annual revenue by approximately $10
million over the past 10 years. But increased competition has slowed their
growth rate in the past few years. The annual review, in millions of dollars,
for the previous 10 years is shown.
Year
Revenue
8.53
10.84
12.98
14.11
16.31
17.21
18.37
18.45
18.40
18.43
1
2
3
4
5
6
7
8
9
10
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