Asked by patina
How many infants should you sample if you want a margin of error of 10 minutes for a 95% confidence interval about the mean amount of sleep they get per day if the population standard deviation is assumed to be 96 minutes?
Answers
Answered by
PsyDAG
95% = mean ± 1.96 SEm
1.96 SEm = 10
SEm = SD/√n = 96/√n
1.96 SEm = 10
SEm = SD/√n = 96/√n
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