| APPLET | SOURCE | DESCRIPTION |
|
| Confidence Intervals | Rice Virtual Lab in Statistics (Lane) | Generates 100 confidence intervals for the mean (both 95% and 99%) for samples of size 10, 15 or 20, displays them visually and tallies and indicates on display how many contain the actual mean. more |
| Confidence Interval | W.H. Freeman & Co. | Generates either one or 50 80%, 90%, 95%, or 99% confidence intervals for a mean, displays them visually and tallies and indicates on display how many contain the actual mean. more |
| Confidence Interval for Mean | VESTAC: Java Applets for Visualization of Statistical Concepts | Generates a specified number of intervals for the mean using various confidence levels and samples of different sizes from a normal population, visually displays both samples and intervals, tallies percentage of intervals that capture the mean, can also do side by side comparison of two processes, for example, using different sample sizes. more |
| Confidence Intervals | Interactive Statistics (Lind, Marchal, Wathen) | Generates six confidence intervals for the mean based on one of five sample sizes, several possible values for the population standard deviation, and several confidence levels (90%, 94%, 95%, 96%, or 99%), displays them visually and indicates with words whether they contain the actual mean (but does not tally or compute percentage for user). more |
| Confidence Intervals | Department of Statistics, WVU | Some brief explanation along with applet that allows user to generate 100 confidence intervals for the mean and to incrementally change population mean or standard deviation, sample size, or alpha to observe the effects on the intervals and the percentage that contain the actual mean, also includes links to examples that explain the effects and a self-test. more |
| Mean Estimate Experiment | Virtual Laboratories in Probability and Statistics (Seigrist, Duehring) | Simulates many confidence intervals, outputting them numerically and indicating whether each contains the mean, shows histogram for the percentage of intervals containing the mean compared to theoretical, allows user to change type of interval (two sided or one sided), population shape and parameters, sample size and alpha level. NOTE: xhtml files may not run in all browsers. more |
| Interactive exercise on confidence intervals | Economics Home Page, University of Michigan-Dearborn | Generates 30 samples of size 5 from a population with a given mean and standard deviation and displays visually the 90% and/or 99% confidence intervals for the mean. Includes information to guide analysis and interpretation of what is seen in the display. more |
| Confidence Intervals for a Mean (for studying the impact of confidence level) | Prentice-Hall applets (West) | Generates 100 samples for a specified sample size and distribution (normal or skewed with user-entered mean and standard deviation) and shows visually the 95% and 99% confidence intervals for the mean, indicates and tallies the percentage that contain the actual mean. more |