A clinician reviews 100 randomly chosen medical records and records 5 systolic BP readings for each patient (which he averages for each patient), and wants to analyze potential differences in systolic blood pressure among patients who are Black, White, and Asian.

What are the variable(s) involved? What type of variables are they (continuous, categorical, etc.)? What statistical analysis test is most appropriate? What are the assumptions of that test? What are the values that test produces that must be interpreted? What research question does your analysis answer?