Yeah, you did misspell Massechusetts. Haha. I don't really care since you're not from America.
The thing is even though I can only remember 37 states off the top of my head, if you said a state (any state), I would know it's a state :D Just can't think of all 50 states in only 4 minutes (which is like one state every 2.5 seconds or so).
So it's not like if you said Minnesota I would be like "is that a city or street name in America?"