Split Test Calculator Tool
Running tests inside your AdWords account is something every marketer should be doing on a regular basis.
Only by testing ad copy and landing pages can you continuously find new messages that resonate with searchers that will increase the profits you receive from AdWords.
Before you can conclude any test, you need to make sure you have statistically significant data so that you are making good decisions regarding your tests.
The Testing Significance Calculator will easily let you see if any test has enough data for you to end the test and make a decision.