- A test for the overall significance of the regression, which is formulated with the null hypothesis that all slopes (independent variables' coefficients) simultaneously equal zero.
- This null hypothesis is identical to a test that the R-square = 0.
F = (explained variance) / (unexplained variance)
= mean regression sum of squares / mean squared error
= (regression sum of squares/number of independent variables) / (error sum of squares/degrees of freedom;error)
= (RSS/k) / (ESS/(n-k-1))
0 comments:
Post a Comment