| APPLET | SOURCE | DESCRIPTION |
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| 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 |
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| 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 |
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| 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. more |
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| 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 |
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| 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 |
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| Confidence intervals for a mean (the impact of not knowing the standard deviation) | Prentice-Hall applets (West) | Generates 100 samples for a specified sample size and distribution (normal or skewed, mean and standard deviation) and shows visually the 95% confidence intervals for the mean based on both Z and T, indicates and tallies the percentage of both that contain the actual mean for comparison. more |
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| Confidence Intervals, ConfidenceIntervalT | Seeing Statistics with Bolder Stats | Generates samples and confidence intervals for a mean using one sample at a time, displays sample data, mean, standard deviation, sample size and confidence limits and shows interval visually, can also generate and view ten samples at a time or 100 at a time where percentage containing true mean is displayed. more |
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| Confidence Intervals | Schneiter | Generates samples to estimate percentage of balls in a population that are red, can specify confidence level and one of three sample sizes and can generate one or 100 confidence intervals. more |
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