Consider the linear regression function AHE = Bo + Bi College + B2 Female + B3 Age + B4Expr + BNE + B6MW +375 + BOR+U, where - AHE: indicates the average hourly earning - College: is a dummy variable indicating whether the individual has completed college Female: is a dummy variable indicating whether the individual is a female or not - Age: indicates the age - Expr: indicates the years of work experience NE: is a dummy variable indicating whether the individual comes from the Northeast MW: is a dummy variable indicating whether the individual comes from the Midwest - S: is a dummy variable indicating whether the individual comes from the South - OR: is a dummy variable indicating whether the individual comes from other regions (other than NE, MW or S) (1) There exists a problem in the above linear regression function, due to which the OLS estimators are not computed. State what the problem is and write down a modified version of the regression function to solve the problem. (2) Based on the modified version of the regression function from (1), perform a White test to check whether there exists significant heteroskedasticity at the 5% significance level. Clearly write out your test procedure