<s>[INST] A study found that chewing gum can boost alertness and alleviate symptoms of fatigue. The experiment consisted of 105 participants, 55 of whom chewed a caffeinated sugar-free gum, while the remaining 50 participants chewed a non-caffeinated sugar-free gum. Each participant completed questionnaires and performed tasks 3 times a day for 10 days.

What would be the first thing that you consider when analyzing the data from this study?[/INST]