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I dont understand the formula of conversion rate in page variation

mkarmocha 05-04-16

I dont understand the formula of conversion rate in page variation

I was doing some sample questions please check here,

 

2) 

Variation A is declared a winner at 90% statistical significance with a difference interval of .10% and 4%. The control's conversion rate is 15%. Which of the following could be Variation A's conversion rate?

 

The answer says 20% how is the formula working ??

Re: I dont understand the formula of conversion rate in page variation

Hey there,

 

Refer to Adam's post here:

https://community.optimizely.com/t5/Using-Optimizely/Difference-Interval/td-p/11519

 

Does that make sense? Does his explanation of different interval help?

 

Best,

Amy

Amy Herbertson
Customer Success