HR practitioners are increasingly performing gender pay audits to understand whether a gender gap exists at their company Practitioners examine payroll data for evidence of a gender pay gap. An HR practitioner collects data on base pay (S), gender (0 = female and 1= male), and age (years) for 50 employees at his company and stores these data in the accompanying table. Develop a multiple regression model that uses gender and age to predict employee base pay. Be sure to perform a thorough residual analysis. The HR practitioner suspected that there was a significant interaction between gender and age. Is there evidence to support the HR practitioner's suspicion