Colonel George “Gung” Ho, executive officer of the 101st Ranger battalion, is concerned about whether or not military information on injuries incurred in parachute jumps is inaccurate. The official figures state that there will be 3.9 injuries per 100 jumps. Colonel Ho thinks this figure is suspect especially for night time jumps. To check this out, he randomly selects 150 paratroopers and makes a night jump just outside Panama City. Twelve paratroopers are injured in the jump. Present a hypothesis, a null hypothesis, and evaluate the hypothesis.