Below is an incomplete R extract of the summary table from fitting a linear regression model IE Income = o + Bage: Coefficients : Estimates Std. Error t value Pr(>t| ) (Intercept) > 15 . 1369 0. 758 0. 5036 Age 1 . 4618 0. 2643 0 . 0116 (a) Calculate the missing values in the table to 2 decimal places; > = to 2 d.p > = |to 2 d.p