The following model test the effect of Credit Score and Student status on Insurance Premium (response variable): Insurance Premium is in $ and Credit Score is in number of units (increasing implies better credit worthiness and lower default risk). Student is a dummy variable, which is equal to 1 if a person is student and 0 if the person is non- student. Coefficient t-statistic p-value Intercept 105.2 -13.64 0.1 The total effect of credit score on Insurance Premium for non-students is = -4.95 and it is highly significant as p-value