SAT scores: A college admissions officer takes a simple random sample of 100 entering freshmen and computes their mean mathematics SAT score to be 435. Assume the population standard deviation is ? = 117. Part: 0 / 4 Part 1 of 4 (a) Construct a 98% confidence interval for the mean mathematics SAT score for the entering freshman class. Round the answer to the nearest whole number. A 98% confidence interval for the mean mathematics SAT score is ____ < ? < ____.
Added by Anne W.
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Step 1
33 (from the Z-table) Margin of error = 2.33 * (117 / √100) Margin of error = 2.33 * 11.7 Margin of error = 27.24 Show more…
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