Regression Model 1: . regress annual_sal minority_em female highest manager custodial Source SS df MS Number of obs 474 F (5, 468) 248.20 Model 4.0059e+11 5 8.0119e+10 Prob > F 0.00.e Residual 1.5107e+11 468 322804685 R-squared 0.7262 Adj R-squared 0.7232 Total 5.5167e+11 473 1.1663e+09 Root MSE 17967 annual_sal Coefficient Std. err. t P>It| [95% conf. interval] minority_em -4158. 042 2065.326 -2.01 0. 045 -8216.503 -99.58136 female -11195.69 1927.705 -5.81 -14983.72 -7407.663 highest 2962.233 394.0501 7.52 0.00. 2187.906 3736.559 manager 53478.11 2778.413 19.25 48018.41 58937.82 custodial 8799. 121 3999.707 2.20 0. 028 939.5144 16658.73 _cons 24909.79 5638. 787 4.42 0.0.0 13829.31 35990.26 Dependent variable: Employee's current annual salary (in dollars); Removed variable: Number of years worked at Safecorp r2 = 0.7262 Annual Salary' = $24,910 - $4,158 (Minority Status) - $11,196 (Female) + $2,962 (Grade) + $8,799 (Custodial) + $53,478 (Manager) Clerical position is the dummy variable left out used for comparing employee position