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Unformatted text preview: presents.
(Note: You do not need to explain the individual mathematical symbols Y0 , t∗ , and s.e.(Y0 )
as part of your answer.) This expression represents the margin of error when making a
forecast.
We need it since a singlenumber forecast such as Y0 is almost
never exactly correct.
But an interval of numbers provides a 95% chance of making a
correct forecast. (TURN QUIZ OVER TO ANSWER MORE QUESTIONS) 3. One of the assumptions behind multiple regression is called homoscedasticity.
(a) Brieﬂy explain the meaning of this term in the...
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 Fall '12
 Whitten

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