A company is testing two different designs for a sign-up pag…
A company is testing two different designs for a sign-up page (Design X and Design Y) to see which one leads to a higher proportion of visitors completing the sign-up process (the conversion rate). They run an A/B test over the course of one week. Design Total Visitors (n) Number of Sign-ups (x) Design X 900 126 Design Y 850 102 Calculate a 99% confidence interval for the difference between the true population conversion rate for Design X and the true population conversion rate for Design Y. Critical values: