High school students signed up to be subjects in a psychology experiment. when they arrive, they are told that interviews are running late, and they are taken to a waiting room. the experimenters have placed a sign in the waiting room next to a button that says, "do not push under any circumstances." some subjects are alone in the room and others are in pairs; these are the treatments being compared. will the subject push the button? the students agreed to take part in an unspecified experiment, and the true nature of the experiment is explained to them afterward. does this meet the requirement of informed consent? explain.

1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

answer; (b) ; /stronger bonds between the nations of africa

answer; the region experienced a surplus of food;