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BrittneyABuell BrittneyABuell
wrote...
Posts: 659
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6 years ago
The sample average of the OLS residuals is
 
  A) some positive number since OLS uses squares.
  B) zero.
  C) unobservable since the population regression function is unknown.
  D) dependent on whether the explanatory variable is mostly positive or negative.
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wrote...
6 years ago
Answer: B
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