What is beta coefficient with rhat j=12.5%, rrf=4.5%, rm=10.5%

Question

I need to find the beta coeffiecient.  Given the flowing information, determine the beta coefficient for stock J that is consistent with equiibrium: rhatj= 12.5%, rrf=4.5% and rm = 10.5%

Answer 1

me want the alfa koeffishent for the i