Question: Suppose that 100 students in a physical education class shoot at a target with a bow and arrow, and 27 students hit the target. These

Suppose that 100 students in a physical education class shoot at a target with a bow and arrow, and 27 students hit the target. These 100 students are then given a demonstration on the proper technique for shooting with the bow and arrow. After the demonstration, they again shoot at the target. This time 35 students hit the target. What additional information, if any, is needed in order to investigate the hypothesis that the demonstration was helpful?

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