The residential division of Prism's high $-$ speed Internet service uses one advertising agency, while its commercial division uses another. Two analysts, Andy and Brad, are $$ sked to test the effectiveness of the two agencies. Andy proposes an A $/$ B test that compares the click $-$ through rates per ad of the two agencies. Brad proposes a difference $-$ in $-$ difference test in which the budgets for both agencies are increased by $50\%,$ ?and the percentage changes in the click $-$ through rates are compared.

True or False: Andy's proposal is more likely than Brad's to suffer from bias due to issues with "representativeness."

True

False