To differentiate related and unrelated information on a page, one could: (Select all that apply.)

Jingyao wants to see if a different headline makes users more likely to sign up for Highrise. What is an appropriate null hypothesis for this A/B test? Select only one answer.

D​esign A:

D​esign B:

In the above experiment, the independent variable is the __________ while the dependent variable is ___________. Select only one answer.