100 Facts About Confidence Intervals

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Here’s a list of 100 facts about Confidence Intervals:

1. A confidence interval (CI) is a statistical tool used to estimate the range in which a population parameter is likely to fall.
2. It provides a range of values rather than a single point estimate for the parameter.
3. The width of a confidence interval is influenced by the level of confidence chosen.
4. Common confidence levels include 90%, 95%, and 99%.
5. A 95% confidence interval implies that 95% of intervals created in this way would contain the true population parameter.
6. A confidence interval is constructed using sample data and a margin of error.
7. Margin of error is the range within which the true parameter is likely to fall.
8. The formula for a confidence interval is point estimate ± margin of error.
9. Point estimates can be the sample mean, sample proportion, etc.
10. Confidence intervals are widely used in inferential statistics.
11. As the level of confidence increases, the width of the interval also increases.
12. Larger sample sizes tend to result in narrower confidence intervals.
13. Standard error is a crucial component in the calculation of…