1) (2 points) What is the interpretation of the coefficient on mother's education (Bi,? Please use the correct unit.2) (2 points) If we change mother i's education in years to mother i's education in months, what is the new value of B1? Please round the number to 4 decimal places.3) (2 points) What is the value of the t-statistic hidden by the box? Please round the number to 4 decimal places.4) (2 points) We want to test the null hypothesis that P1 =. Suppose the criticalvalue for a two-sided hypothesis test is $1.96. What is the conclusion of this hypothesis testing and why?