Asked by martha
The following list is a sampling of the costs of various statistics textbooks used at several colleges. Give the upper confidence limit for a 95% confidence interval estimate for the mean cost of all statistics textbooks.
109.95; 92.00; 96.70; 84.85; 92.60; 84.45; 90.95; 77.00; 75.50
109.95; 92.00; 96.70; 84.85; 92.60; 84.45; 90.95; 77.00; 75.50
Answers
Answered by
MathGuru
Formula:
CI95 = mean ± 1.96(sd/√n)
You will need to calculate the mean and standard deviation for your data. In the formula, n = sample size.
Once you have what you need, substitute into the formula and determine the confidence interval.
I hope this will help get you started.
CI95 = mean ± 1.96(sd/√n)
You will need to calculate the mean and standard deviation for your data. In the formula, n = sample size.
Once you have what you need, substitute into the formula and determine the confidence interval.
I hope this will help get you started.
Answered by
Mabel
28.22
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.