Two samples of 12 juniors at CSUF each are obtained. The first sample of attended a presentation by a politician who gave only facts to support his claims. The second sample attended a presentation by an actor (pretending to be a politician) who provided only false information to support his claims. The sociologist, Pamela Wilson, records the score on "level of trust" reported by each student. She wonders if there is a significant different in the level of trust between the two groups. Alpha = .01 Which would be Step 1 for the above experiment