arm emptied: L1_2 None 0.0
arm emptied: L1_57 None 0.29015152085267343
arm emptied: L2_65 None 2.265445891990475
all (0.244, 0.108, 0.386)
fp16-removed (empty arm=0) (0.0532, -0.125, 0.213)
restricted to problems where neither arm is emptied: all (0.2457, 0.107, 0.399) fp16-removed (0.1247, 0.004, 0.262) N 38
sign test 25 10 p=0.0167
