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Calculate the Percentage Confidence in Pay Per Click Conversion Data

Live This is a statistical calculator. You can find out what your confidence interval is for a given set of data from your paid advertising campaign. Just plug in the number of impressions along with the number of clicks, and you will know how sure you can be that you have enough data on which to make decisions regarding the performance of your Pay Per Click campaign.

Instructions

Please enter the number of impressions you have received (as reported in your Google or Yahoo or other paid advertising campaign report.
DO NOT use any commas.

Number of Impressions:

Number of Clicks (or conversions):

What percent certain (sigma) do you want to be that your conversion rate is within the resulting confidence interval?

Background: I came up with this tool as a result of my need for this type of information for my own campaigns. If you have any comments please feel free to contact me at andreawasik@gmail.com