A college admissions officer takes a simple random sample of 103 entering freshmen and computes their mean mathematics SAT score to be 493. Assume the population standard deviation is 112. What is the lower bound of the 99% confidence interval?
Round your answer to the nearest integer.
Round your answer to the nearest integer.
Answers
Answered by
PsyDAG
99% = mean ± 2.575 SEm
SEm = SD/√n
I'll let you do the calculations.
SEm = SD/√n
I'll let you do the calculations.
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