For a class project, a student studies the likelihood that students turn in their homework each day. For each of her classes, she observes the teacher collect homework. She records the number of students who turn in homework, and the number who do not. The resulting data show that 72% of students turned in homework on time and 13% of students did not turn in any homework at all during the week. Use this information to answer parts a through c. What type of sampling method was used? [Select] What type of study was performed? [Select] Can the student use these statistics to make a general conclusion about all students in her school? [Select] [Select] Yes, the sample size and number of school days are large enough to represent all students in he No, the students in her classes know she is observing them. Yor the students in her classes represent all students in her school.