A$/$B testing is a testing method that businesses use to test different designs and formats of a webpage to determine whether a new webpage is more effective than a current webpage. Web designers at a certain website test at a new call to action button on its webpage. Every visitor to the webpage was randomly shown either the original call to action button $($the control$)$ or the new call to action button. The metric used to measure success was the download right: the number of people who downloaded the file divided by the number of people who saw that particular call to action button. The experiment results are shown in the accompanying table.