SAT scores: A college admissions officer takes a simple random sample of 100 entering freshmen and computes their mean mathematics SAT score to be 463. Assume the population standard deviation is $\sigma = 120$.
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Given that σ = 120 and n = 100, we can calculate the SEM as follows: SEM = 120 / √100 SEM = 120 / 10 SEM = 12 Show more…
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SAT scores: A college admissions officer takes a simple random sample of 100 entering freshmen and computes their mean mathematics SAT score to be 452. Assume the population standard deviation isσ=117. Construct a 99% confidence interval for the mean mathematics SAT score for the entering freshman class. Round the answer to the nearest whole number.
Hoan N.
SAT scores: A college admissions officer takes a simple random sample of 125 entering freshmen and computes their mean mathematics SAT score to be 452. Assume the population standard deviation isσ=117. Construct a 99.8% confidence interval for the mean mathematics SAT score for the entering freshman class. Round the answer to the nearest whole number.
SAT scores: A college admissions officer takes a simple random sample of 125 entering freshmen and computes their mean mathematics SAT score to be 452. Assume the population standard deviation isσ=117. Construct a 99% confidence interval for the mean mathematics SAT score for the entering freshman class. Round the answer to the nearest whole number.
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