Question: In a multiple linear regression model with K independent variables, an F-test is applied to test for the overall fit. If the F statistic is

In a multiple linear regression model with K independent variables, an F-test is applied to test for the overall fit. If the F statistic is smaller than the critical F value, we conclude that:

  1. the entire set of independent variables explains the dependent variable significantly
  2. some independent variables do not explain the dependent variable significantly
  3. the entire set of independent variables does not explain the dependent variable significantly
  4. some independent variable explain the dependent variable significantly

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