=+30. Lectures. A large university is offering its graduate students a marketing course using two different teaching methods: traditional lecture-based courses and online courses. Students were assigned at random to the two types of courses and then given an exam. The university would like to compare the two methods. The table shows how the two groups performed. What do you conclude? (Assume the assumptions for inference are met.)

Program n Mean SD Traditional 143 77.5 10.3 Online 167 74.32 9.7