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A teacher wants to know if students in her biology class did significantly better on an exam after instruction using authentic learning. The scores pre and post test are listed below. Based on an α = .05, what can the teacher conclude?
Pretest:77 79 81 88 67 90 73 82 85 76 71 70
Posttest:80 81 87 89 72 95 77 88 83 79 72 75
Assume the data for the three groups are independent and the data are approximately Normal. The P-value is less than 0.01. The correct conclusion is that
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