mattdrankin
New member
- Joined
- Oct 24, 2009
- Messages
- 11
For a group of 10 men subjected to a stress situation, the mean number of heartbeats per minute was 126 and the sample standard deviation was 4.
What is the margin of error for a 95% confidence interval?
What is the 95% confidence interval of the true mean?
Write a sentence explaining the 95% confidence interval in context of the question. (There are only a few ways to do this correctly, so be sure to read the book closely.)
Write a few sentences explaining what would happen if you wanted a 90% confidence interval?
Write a few sentences explaining what would happen if you changed the sample size to be 1000 men and kept a 95% confidence interval.
What is the margin of error for a 95% confidence interval?
What is the 95% confidence interval of the true mean?
Write a sentence explaining the 95% confidence interval in context of the question. (There are only a few ways to do this correctly, so be sure to read the book closely.)
Write a few sentences explaining what would happen if you wanted a 90% confidence interval?
Write a few sentences explaining what would happen if you changed the sample size to be 1000 men and kept a 95% confidence interval.
