A 99% confidence interval for the mean μ, of a population of families in Southern California who have gone to Disneyland, is computed from a random sample of Southern California families and found to be 6 ± 3. We may conclude that
Options:
- All of the answers are correct
- there is a 99% probability that the true mean is 6, and there is a 99% chance that the true margin of error is 3.
- if we took many, many additional random samples, and from each computed a 99% confidence interval for μ, approximately 99% of these intervals would contain μ.
- there is a 99% probability that μ is between 3 and 9.