Asked by Mariaan
A random sample of 30 women drank an average of 15 cups of coffee per week during examination finals,
with the sample standard deviation equal to 3 cups. A upper limit of an approximate confidence interval
with 95% of the population average cup drunk is ?
with the sample standard deviation equal to 3 cups. A upper limit of an approximate confidence interval
with 95% of the population average cup drunk is ?
Answers
Answered by
PsyDAG
95% confidence interval = μ ± 1.96 SE
Standard Error (SE) = SD/√(n-1)
Z = (x-μ)/SE
1.96 = (x-15)/SE
Solve for x.
I hope this helps.
Standard Error (SE) = SD/√(n-1)
Z = (x-μ)/SE
1.96 = (x-15)/SE
Solve for x.
I hope this helps.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.