23) Consider the following earnings function: ahej= Bo + 81*DFemme; + 82xeducit...+ uj versus the alternative specification ahej= yo * DMale + y1*DFemme; + y2xeducit...+ uj where ahe is average hourly earnings, DFemme is a binary variable which takes on the value of "1" if the individual is a female and is "O" otherwise, educ measures the years of education, and DMale is a binary variable which takes on the value of "1" if the individual is a male and is "0" otherwise. There may be additional explanatory variables in the equation. a. How do the /'s and ys compare? Putting it differently, having estimated the coefficients in the first equation, can you derive the coefficients in the second equation without re-estimating the regression? b. Will the goodness of fit measures, such as the regression R2 , differ between the two equations