Having done poorly on their math final exams in June, six students repeat the course in summer school, and then take another exam in August. If we consider these students representative of all students who might attend this summer school in other years, do these results provide evidence that the program is worthwhile? June      54, 49, 68, 66, 62, 62 August  50, 65, 74, 64, 68, 72 Evaluate on a TI 83 calculator

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