Identify the research question that involves an inference about a difference between two population means. A. Is the average amount of financial aid received in a year by community college students greater than $2,600? B. Do female community college students prefer to work on group projects more than male students? C. Do community college students prefer computer-based homework or pencil-and-paper homework in math classes? D. Do community college students receive less in financial aid than students attending public universities?