Asked by jennifer
A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
Answers
Answered by
PsyDAG
95% = mean ± 1.96 SEm
SEm = SD/√n
SEm = SD/√n
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