An expert witness in a case of alleged racial discrimination in a state university school of nursing introduced a regression of the determinants of Salary of each professor for each year during an 8-year period (n = 423) with the following results, with dependent variable Salary and predictors Year (year in which the salary was observed), YearHire (year when the individual was hired), Race (1 if individual is black, 0 otherwise), and Rank (1 if individual is an assistant professor, 0 otherwise). Interpret these results.

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Variable Coefficient 2 Intercept Year YearHire ace Rank -3,816,521 1,948 -826 -2,093 -6,438 -29.4 29.8 -5.5 -4.3 -22.3 R 0.811 Ra0.809 s# 3,318