Let R2unrestricted and R2restricted be 0.4366 and 0.4149 respectively. The difference between the unrestricted and the restricted model is that you have imposed two restrictions. There are 420 observations. The F-statistic in this case is
Question 2
Consider a typical beta convergence regression function from macroeconomics, where the growth of a country's per capita income is regressed on the initial level of per capita income and various other economic and socio-economic variables.