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We have a Google Experiment that has been running for 9 days. It shows a 16% improvement on the variation but the confidence level column is missing. i.e The "Probability of Outperforming Original" is not there. Why is this? How can we get it to appear?

"Compare to Original" is the last column in the report.

"Compare to Original" is the last column in the report.

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**Answer** by Jasper
·
Feb 15 at 04:27 AM

It looks like Google removed this feature because it was too buggy. Lots of people seem to be asking the same question on the Google forums but Google has not responded.

https://www.en.advertisercommunity.com/t5/Google-O...

As usual, they have little interest customer support but prefer to use algorithms to deal with every issue :)

Here is an alternative tool you can use to calculate statistical significance:

http://meclabs.com/testingtool

https://www.en.advertisercommunity.com/t5/Google-O...

As usual, they have little interest customer support but prefer to use algorithms to deal with every issue :)

Here is an alternative tool you can use to calculate statistical significance:

http://meclabs.com/testingtool

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