Mathematics
Mathematics, 16.12.2019 01:31, xj855042

Last year, the average math sat score for students at one school was 475. the headmaster introduced new teaching methods hoping to improve scores. this year, the mean math sat score for a sample of students was 481. if the teaching method had no effect, there would be roughly a 3 in 10 chance of seeing such an increase. does the result have practical significance? why or why not?

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Last year, the average math sat score for students at one school was 475. the headmaster introduced...

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