School finances are usually expressed as "per pupil spending." You can find it for all 50 states here.
Student outcomes are weakly correlated with funding, and you can find examples of everything.
So based on the two sites I linked, Utah is the lowest spenders per student in education, and scores significantly above average in student outcomes. Alabama is a low spender and consistently scores lower than average in academic performance.
The highest spending state is New York, and scores significantly lower than the national average. Connecticut spends A LOT of money per pupil compared to other states, and has significantly above average academic performance.
I don't think the issue is funding.