We believe statistics should work the way you do.

Optimizely partnered with Stanford statisticians to develop a revolutionary new approach to statistics for experience optimization. Our new Stats Engine supports experimentation and decision-making on your terms--no precautions needed. The approach builds on everything we've learned from helping the world’s leading brands optimize hundreds of billions of experiences.

Download this whitepaper to discover:

• Why you won’t need to set a sample size in advance
• How Stats Engine enables you to confidently check experiments as often as you want
• How you can test as many variations and goals without worrying about hidden sources of error