Question
An SRS of 450 high school seniors gained an average of =44 points in their second attempt at the SAT Mathematics exam. Assume that the
An SRS of 450 high school seniors gained an average of =44 points in their second attempt at the SAT Mathematics exam. Assume that the change in score has a Normal distribution with standard deviation=28.
Find a 90% confidence interval for based on this sample. Give your answers to three decimalplaces.
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Logic And Structure
Authors: Dirk Van Dalen
5th Edition
1447145585, 9781447145585
