Guides ยท Math
Confidence Interval Basics
Express estimate uncertainty
Confidence intervals provide a range of plausible parameter values given data and a confidence level, reflecting sampling variability.
- interval
- uncertainty
- sampling
- margin of error
- confidence level
Interpret
A 95% CI means this method captures the true value in 95% of repeats.
Compute Factors
Depends on sample size, variance, and chosen confidence.
Communicate
Report interval endpoints and assumptions, not just point estimates.