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. O a. I only Ob.Il only Oc. Il only O d. I and II O e. I, Il and II
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. O a. I only Ob.Il only Oc. Il only O d. I and II O e. I, Il and II
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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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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