If the tuition part is included in your w-2 and tax is withheld,
you may treat it as scholarship. Separate it from w-2 wage and
put on 1040NR-EZ line 5 and line 9. line 3 is the total minus
the scholarship part. (or find the lines on 1040NR by yourself)
I suggest you attach a letter from the univ/dept showing the
total on W-2 = tuition + stipend. IRS may require it.