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Mathematics, 26.03.2020 17:50 proxydayz

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 1470 eighth-graders in Atlanta hadx¯¯¯=240with standard deviation 42.17. Calculate and interpret a 99% confidence interval for the mean score of all Atlanta eighth-graders.

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