21)When pareduc is added as a separate variable to the equation the model becomes a below: log(wage) = 4.94 (0.38) (0.027) (0.017) 0.097 educ+ 0.033 pareduc- 0.0026 educ>pareduc (0.0012) +0.020 exper+ 0.010 tenure (0.004) (0.003) n = 722 R = 0.174 a) [5pts] Does the estimated return to education now depend positively on parent education? Why? Coeffeient pereduc 0.33. In this coefficent is Sbtocol significant and pasiture, it suggests not the Rent edve estimated reento ed a is pasitvely dependent Haven to conclusively detomire this it would be necessary the listed strificance of the coefficient through thypothears assess testig b) [6pts] Test the null hypothesis that the return to education does not depend on parent education, at 1%, 5% and 10% significance levels. (Hint: Test the statistical significance of the interaction term.)