I will give the explanation based on the facts offered in the original post.
Minnesota beat Baylor by 32, and Ohio State beat Baylor by 3. So Minnesota would beat Ohio State by 29.
Nebraska beat Ohio State by 4. Since Minnesota would have beaten Ohio State by 29, they would beat Nebraska by 25.
Mississippi beat Nebraska by 14, so Minnesota would beat Mississippi by 11.
Connecticut beat Minnesota by 4, so Connecticut would beat Mississippi by 15.
Notre Dame beat Connecticut by 3, so Notre Dame would beat Mississippi by 18.
Harvard beat Notre Dame by 1,
so HARVARD WOULD BEAT MISSISSIPPI BY 19
Now you have an idea how the lines are set by bookies for betting sports.
Congrats Shruew on a correct answer