It depends on your background (CS and math are very very useful) and which track you're going for (standard vs advanced). I believe Norvig & Russell's textbook is being used for the class, which is the standard for AI classes at universities and a FANTASTIC textbook. If you skim through it, you can get an idea. I took a similar class in grad school with the same text (I'm a CS major) and sometimes spent 2 hours in a week...sometimes 15. It depends on what you're good at and how much detail they go into.