You are part of a research team that wants to determine the effectiveness of exercise vs. blood pressure medications on lowering blood pressure.
Sixty participants are enrolled in your study and randomly assigned to the treatment groups.
Some participants will use exercise for 3 months, and the others will take Lisinopril, a blood pressure-lowering medication, for the same time.
At the end of the study, you have each individual's baseline and 3-month blood pressure readings. Please state your hypothesis, independent, and dependent variables from this example.