- Interval for a Proportion from Counts
- Stapplet https://www.stapplet.com/cat1v_single.html?inf=interval
- Variable name: Put the name for the types of categories.
- Input data: Select "counts in categories"
- Category 1: Put in the Category name. This is usually
- Category 2: Put in at least one other category your data could fall into.
- Geogebra Applet for Confidence Intervals given Stats
- To do a Confidence Interval for a Mean when Sigma is known, keep the default setting of Z Estimate of a Mean. You will need sigma and not standard error for this confidence interval.
- To do a Confidence Interval for a Mean when Sigma is unknown (I2), just switch Z Estimate of a Mean to "T Estimate of a mean" and s is the standard error for the sample.
- To do a Confidence Interval for a Proportion when sigma,, select "Z Estimate of a Proportion". Successes and N must both be integers.