Udacity is considering online experiments to test potential improvements to their website. Two versions of the website are shown to different users - usually the existing website and a potential change. My goal is to design and analyze an A/B test and write up a recommendation on whether Udacity should introduce a new version of the website.

In a Stroop task, participants are presented with a list of words, with each word displayed in a color of ink. The participant’s task is to say out loud the color of the ink in which the word is printed. The task has two conditions: a congruent words condition, and an incongruent words condition. In the congruent words condition, the words being displayed are color words whose names match the colors in which they are printed: for example RED more ...