economist in fundulia, a closed economy,have collected the following informationabout the economy for a particular year.. . y-=10,000 . c=6000 . t=1500 . g=1700 . the economist also estimate that the investment function is: . I=3,300-100r . where r is the country’s real interest rate,expressed as a percentage. Calculate private savings, public savings, national savings, investment, and the equilibrium real interest rate