An expert witness in a case of alleged racial discrimination in the state university school of nursing introduced regression of the determinants of Salary of each and every professor for each year throughout an 8-year period (n = 423) with the following results, with dependent variable Year (year in which the salary was observed) as well as predictors 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.
Variable Coefficient t p
Intercept ?3,816,521 ?29.4 0.0000
Year 1,948 29.8 0.0000
YearHire ?826 ?5.5 0.0000
Race ?2,093 ?4.3 0.0000
Rank ?6,438 ?22.3 0.0000
R2 = 0.811 R2adj= 0.809 s = 3,318