90 F test second formula

In this econometrics lesson, we explore the second formula for the F-test, utilizing R-squared. Building on the previous video's explanation of the F-statistic using the sum of squares, we now demonstrate how R-squared, a rescaled measure of explained variation, provides an alternative pathway to the same test. This formula is particularly useful as R-squared is commonly reported in regression outputs, simplifying model-level testing and facilitating comparisons between nested models. This video will guide you through the mathematical relationship between the sum of squares formula and the R-squared version of the F-test. Understanding this connection will not only solidify your grasp of econometrics but also equip you with the ability to derive one formula from the other. Subscribe to @AxiomTutoringCourses for more econometrics insights.