Statistical PERT® templates and example workbooks are Excel files that use standard, built-in Excel functions to forecast the future. There is nothing to buy, nothing to install, no macros, no advertising, no adware, and no registration required!
There are two editions of Statistical PERT: Normal Edition and Beta Edition.
- The Normal Edition uses Excel’s two normal distribution functions, NORM.DIST and NORM.INV
- The Beta Edition uses Excel’s two beta distribution functions, BETA.DIST and BETA.INV
- Both editions of Statistical PERT are very easy to use
The Normal Edition is easier for a user to customize, whereas the Beta Edition is better suited to modeling a wider range of bell-shaped uncertainties, including uncertainties that are moderately-to-heavily skewed. Both editions are freely licensed under the GNU General Public License, and both editions are ad-free and macro-free. Download Statistical PERT® example workbooks or templates now, and try using both editions of Statistical PERT!