51) Metro University has set a goal to increase the percentage of alumni who donate to the university and to increase the average amount given by those who have donated in the past. Metro University hopes that holding special events at homecoming night designed specifically for alums will result in an increase in donations. Consequently, it is planning a special Alumni Bash for homecoming night, and invitations have been sent to students who graduated between 1975 and 2000. Identify the dependent and independent variables in the example. State a hypothesis using the information provided.