please help me answer #24. I really appreciate it :)

70 confidence interval with a margin of error equal to 1 70 ! 24. Snack sample (H). A survey asking students whether or not they snacked most days reports a margin of error of 5%. About how many students do you think were surveyed? 25. In the balance. Balance a penny on end and then pound on the table so that it falls over. Repeat this 25 times, recording the percentage of times your