Confidence Interval

Author:  Rice Virtual Lab in Statistics

This applet simulates sampling from a population with a mean of 50 and a standard deviation of 10.  For each sample, the 95% and 99% confidence intervals on the mean are computed based on the sample mean and sample standard deviation.  The intervals for the various samples are displayed by horizontal lines.  Part of the Rice Virtual Lab in Statistics suite, this applet includes instructions for use, concept explanation, exercises, and a limited use JAVA applet to illustrate how Type I error impacts statistical inferencing.

Confidence Interval