Group C reflection “Does workout helpful on people’s performance in a day.”

What area of interest/research question do you wish to explore through a research study design？since i saw a lot of people usually going to gym and running in the central park. so i want to explore does workout sometimes helpful people’s performance.
What variables or concepts are you looking to observe and/or manipulate?in this research. i want to manipulate it by choosing two group of people. group A (people who workout) group B(people who do not workout).
What type of design would best suit your research question? (Experimental, Correlational, etc) correlational design would best suit my research question.
What research method would you use to conduct your experiment? (Survey, case study, naturalistic observation, lab experiment, etc.) the method that i want to use to conduct my experiment is survey and case study. first, i will do a general survey questionnaire on group A and B separately, and then choose one person from group A and B do a case study .
If applicable, what would you put as your independent and dependent variables? independent variable is group of people. dependent variable is performance in a day

Give a hypothesis about what you think you might find. i might find group A is more performance aggressive and have more energy in a day than group B
What might be the benefits and implications of this study? In other words, who would gain from it? i think workout somewhat could help our body and make our body more healthier. the benefits would be group A will set a good exemplary to group B.
Please reflect on the process of designing this experiment. What were the challenges you faced? Was this more/less difficult than you expected? How? i think there do not have a challenges , the only barrier that might have where to find those two group of people as the volunteer.