The administration at a certain university has explained this year’s tuition increase by citing increased spending on faculty salaries and on need-based aid to students.
Conclusion
The administration's explanation is not believable. rephrase: the tuition increase was not because of increased spending on faculty salaries or need-based aid.
Evidence
Faculty salaries are only a small part of the university's budget, and the only significant increases in scholarship aid are to academics-based scholarships, not need-based.
Evaluate / Goal
We can strengthen this argument by either pointing to a different explanation for why tuition increased or by adding more plausibility to the ideas that it's not going up because of more spending on faculty salaries or on need-based aid.