1. Your objective is to determine if there is a significant difference in the mean ages of stroke patients based on their blood pressure groups: low, normal, or high. a. Start by sorting or putting the "Age" variable in your sample based on the "BP" variable, which categorizes observations into "low (0)," "normal (1)," and "high (2)" blood pressure groups. So here, you will have three groups (columns) with different ages grouped by BP category