Homework Sourse1610 An SRS of 400 high school seniors gained an average of
(16.10) An SRS of 400 high school seniors gained an average of x¯ = 24 points in their second attempt at the SAT Mathematics exam. Assume that the change in score has a Normal distribution with standard deviation 46.
Find a 95% confidence interval for based on this sample.
Confidence interval (±0.01) is between ___and___
What is the margin of error (±0.01) for 95%?_____
Suppose we had an SRS of just 100 high school seniors. What would be the margin of error (±0.01) for 95% confidence? _____
| (16.10) An SRS of 400 high school seniors gained an average of x¯ = 24 points in their second attempt at the SAT Mathematics exam. Assume that the change in score has a Normal distribution with standard deviation 46. Find a 95% confidence interval for based on this sample. Confidence interval (±0.01) is between ___and___ What is the margin of error (±0.01) for 95%?_____ Suppose we had an SRS of just 100 high school seniors. What would be the margin of error (±0.01) for 95% confidence? _____ |
Solution
