Lectures. A university in Belgium offers a marketing course using two different teaching methods: traditional lecture-based courses and online courses. Students were assigned at random to the two courses and then were given an exam. The university would like to compare the two methods of teaching. The following 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