Search results

  1. BarneyFife

    Ad Testing and Margin of Error

    I was looking at an AdWords campaign today and noticed something interesting. In one adgroup I have two identical ads. Today one has a 1.12% CTR and the other has 0%. OK, it's only 6 clicks -- so is it a statistical aberation? In the last week the ads have a total of 40 clicks with an identical...