If a Statistics faculty member has agreed to fund you as a Graduate Student Researcher (GSR) also known as a Research Assistant, you must submit the Graduate Student Researcher Appointment Request form here: https://www.erso.berkeley.edu/gsr/beginGSRApptRequest.php
It is important for you to submit the form by the following dates for on-time pay:
Fall appointments: July 15.
Spring appointments: October 15
Summer appointments: April 15
Statistics PhD students are hired at Step 9 at 48%, if you have not yet taken your qualifying exam. Once you have passed your qualifying exam, you should be hired at Step 9 at 50%. You can find the current GSR rates here: https://www.ucop.edu/academic-personnel-programs/_files/2022/oct-2021-scales/t22.pdf
All graduate students who hold academic appointments (GSI, GSR, Reader, Tutor) that total 25% or greater may be eligible for fee remissions that offset a portion or all of their fees. For more information regarding fee remissions and eligibility requirements, please visit Graduate Division's website: https://grad.berkeley.edu/financial/academic-employment/fee-remissions/