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Math Help - Most likely to succeed....Split test between 2 options

  1. #1
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    Most likely to succeed....Split test between 2 options

    I have 2 marketing ads (Ad-1 & Ad-2). Ad-1 has 30 clicks with a click through rate (clicks per time seen by shoppers) of 3%. Ad 2 has 10 clicks with a click through rate of 5%. Which ad will have the higher click through rate over time?

    This is a question based off a tool at this link: :::SplitTester.com:::.

    I'm sure it is a relatively simple formula that gives you the % of one being the better ad. I want to put it in a spreadsheet with this info instead of doing this 1 at a time.

    Thanks
    Last edited by onestop; October 11th 2010 at 07:37 AM.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by onestop View Post
    I have 2 marketing ads (Ad-1 & Ad-2). Ad-1 has 30 clicks with a click through rate (clicks per time seen by shoppers) of 3%. Ad 2 has 10 clicks with a click through rate of 5%. Which ad will get more clicks over time?

    This is a question based off a tool at this link: :::SplitTester.com:::.

    I'm sure it is a relatively simple formula that gives you the % of one being the better ad. I want to put it in a spreadsheet with this info instead of doing this 1 at a time.

    Thanks
    Are the 30 and 10 clicks from the same time duration? Presumably you have to assume so since you do not know the number of deliveries per unit time. If so the click through rate is irrelevant, the ad with the more clicks over the sample period (making some gross assumptions about the representativeness of the sample period) will see the more clicks over time.

    CB
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  3. #3
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    Ok. I need to clarify the question. I need the formula that tells you which will have the higher click through rate over time.
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  4. #4
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    I emailed the person that made the split test website above to inquire about the underlying mathematical equation. He said in short it is a z test. Any help here?
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