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5. The Trial Urban District Assessment (TUDA) is a government-sponsored study of student achievement in large urban school districts. TUDA gives a reading test scored

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5. The Trial Urban District Assessment (TUDA) is a government-sponsored study of student achievement in large urban school districts. TUDA gives a reading test scored from 0 to 500. A score of 243 is a "basic" reading level and a score of 281 is "proficient". Scores for a random sample of 81 eighth graders in Atlanta had x = 240 with a standard deviation s = 9.9. Is there good evidence that the mean for all Atlanta eight-graders is less than the basic level? a. State the null and alternative hypotheses for testing the claim that the mean for all Atlanta eighth-graders is less than the basic level

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