# Confidence Interval Variation

- Author:
- David Gurney

Two confidence intervals for the population mean are
shown below. The top interval changes as the slider
values change. The bottom interval has fixed values
to compare the results as the top interval changes.
How does the confidence interval change as the
sample mean changes?
How does the length of the confidence interval change
as the sample standard deviation changes?
How does the length of the confidence interval change
as the sample size changes?
How does the length of the confidence interval change
as the confidence changes?