Confidence Intervals >> Calculate two population confidence intervals
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| APPLET | SOURCE | DESCRIPTION |
| The Confidence Interval for the Difference Between Two Independent Proportions | Vassar Stats (Lowry) | Calculates 95% confidence intervals for the difference in two independent proportions based on number of successes and trials using Newcombe's methods. more |
| t-Test for Independent or Correlated Samples | Vassar Stats (Lowry) | Computes confidence intervals and performs hypothesis tests for the difference in two means from either independent or correlated populations based on data that is either entered or pasted into columns. more |