Two sigma ai research scientist (not Quant)

i have an upcoming onsite interview with two sigma for the AI RS (not a quant researcher) but not sure what to prepare for this role. 1 do they ask LC ? 2 do the ask stats? (I interned there 8yrs ago and my question was mostly stat and brain teaser at that time but now im too old and forgot all.. except basic stats i use for work) 3 what to prepare if above are not the case? TC 650 -> 500 Yoe 9 Job family: applied scientist manager PS Our team is also in hiring frz so cant hire and im sick of being manager (wanna go back to IC at different company)