Confidence Intervals with R Commander

The videos on this page show you how to use R Commander to determine a confidence interval for the population parameter from a sample of data and how to determine the sample size required for a given confidence level.

https://www.youtube.com/embed/oz56fNMpJSs

Instructions for constructing a confidence interval.

https://www.youtube.com/embed/VgH8mzmA0SI

Calculating the sample size required for a given confidence level.