If you are constructing a confidence interval for a population mean, for the same confidence level, the width of the confidence interval will __________ as the sample size increases.
- Decrease
- Increase
- Stay the same
- Depends on the sample size
Suppose a 95% CI for the population proportion is [0.35, 0.45]. How should we interpret this confidence interval?
- There is a 95% chance that the population proportion lies between 0.35 and 0.45
- We are 95% confident that the population proportion lies between 0.35 and 0.45
- Both of the above are correct
- None of the above