1. How do you find the margin of error from the lower and upper bounds of a confidence interval?
2. What is the effect of increasing the standard deviation on the margin of error?
3. Why does increasing the confidence level result in a larger margin of error?
4. Why would you be more likely to use a T-interval in a real-world situation than a Z-interval?
5. When do you use the t-distribution to determine the confidence interval for the mean?