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split testing tool

sloth456

By sloth456
in PHP Coding Help

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sloth456 Member

sloth456

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Hi,

 

I'm trying to build a split tester tool that will compare the click through rate of 2 adverts and tell me how confident I can be there is a statistical difference between the 2.

 

For example

 

Ad 1 has a CTR of 1.97%

Ad 2 has a CTR of 0.52%

 

You can be 90% sure that the ads will have a differences in the long run.

 

The significance figure above is just an example not actually calculated to be correct.

 

I have no idea how to calculate statistical significant difference.  Any help?

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