I would think that even if you’re in a smaller program at Michigan it would still feel very different from Tufts in terms of campus size, campus life, etc.
To me the more relevant point is that you seem to be considering attending both an undergraduate business school and Tufts. Tufts doesn’t have any traditional business school programs (though there’s a growing entrepreneurship program), so I would think that the academics of an undergraduate business degree would be fairly different from anything you’d study at Tufts…