A logistics company is interested in evaluating the impact of a carbon awareness course on the actual carbon footprint of their employees. Two groups of volunteer employees were asked to download a phone app to track their carbon footprint over a one-year period. The employees in Group A were asked to attend the carbon awareness course before using the app for the year, while the employees in Group B used the app for the year without having taken the course. The company has asked their student intern Henna to compile a report