LS 5. A statistics teacher is conducting an experiment to see if students' academic performance increases when they chew gum while taking tests. Suppose the teacher knows that juniors in the class typically score higher than seniors (most likely because seniors are busy with SATs, ACTs, and college applications). In 5 or more sentences, describe in detail the most effective design for this experiment. Your answer must include: . How to use blocking . Why blocking is useful in this situation . How should the teacher assign the treatments . At least one other way to minimize bias (in addition to blocking) Your instructor will score your response as if it were a free response question as follows: (4) Complete Response = 10 points (3) Substantial Response = 7.5 points (2) Developing Response = 5 points (1) Minimal Response = 2.5 points (0) Insufficient Response = 0 points Refer to pages 27-30 of the course description E for FRQ scoring guidelines