statmagic app for iPhone and iPad

Statmagic makes intro stats simpler, clearer, and easier to learn.

This is the best, easiest-to-use app for learning stats, featuring:
> Complete and accurate results for 10 different statistical topics and tests.
> Press-and-hold definitions for all inputs.
> Automatic graphics and plots, so you can visualize what’s going on.
> Input validation and warning messages to help prevent simple mistakes.
> Integration with a statmagics online learning series, which teaches the core ideas of a semester-long stat course into less than 2 lectures worth of time.
> Extensive help material, with straightforward explanations of the core ideas and formulas of statistics, honed by years of tutoring experience.
> Flexible answer rounding.
> Memorable example problems.

With 10 calculators, statmagic covers the most common topics in intro stat classes, each with individual help pages and specific example problems. These are:
> Descriptive stats (mean, quartiles, standard deviation, etc.).
> Probabilities (with Z and T scores) on the normal distribution.
> One- and two-sample tests of mean (Z, T, and Welch tests).
> One- and two-sample tests of proportion (allows both decimal "0.48" and fractional "54/112" type entries for p).
> Confidence intervals (for a mean or a proportion, featuring a full, auto-filling CI formula, so you can see how the CI is constructed).
> Minimum N (for a mean or a proportion).
> Least-squares linear regression (with an automatic scatterplot that colors outliers).

Learn, practice, and finish your stats homework faster with statmagic. Or, upgrade to statmagic PRO for even more awesome features!