A researcher believes a daily walking program (walking once a day) will lead to better heart rate than a weekly walking program (walking once a week). One group of persons complete a daily walking program, while another group does not complete a walking program. A third group completes a weekly walking program. Heart rate after three months was measured, and the experimenter compared the results . 1. What is the hypothesis in the experiment above ? 2. What is the independent variable in the experiment above ? 3. What is the dependent variable in the experiment above ? 4. What is/are the experimental group (s) in the experiment above ? 5. What is/are the control group (s) in the experiment above