Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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Transcribed Image Text:Here are the errors associated with a particular forecast over the past five months, in chronological order: 2, 5, 0, -5, -10.
Which of the following statements is (are) true?
I. The forecast was too high during the fifth month.
II. The mean error over these five months is -2.
III. The forecast was perfectly accurate during one of the months.
a. I only
Ob. Il only
O. Il only
d. I and III
Oe.I, Il and II
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