3. A course is designed to increase reading speed and comprehension. To evaluate the effectiveness of this course, students are given a test both before and after this course, and the sample results follow. Can we claim that this course is effective at 10% level of significance? Student 1 2 4 6 7 Before 100 110 135 167 200 118 127 After 136 160 120 169 200 140 163

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