mean:
rewards (before) -0.553348 rewards (after) 4.374639 dtype: float64
median:
rewards (before) -0.721978 rewards (after) 5.523491 dtype: float64
mean:
rewards (before) -0.553348 rewards (after) 4.374639 dtype: float64
median:
rewards (before) -0.721978 rewards (after) 5.523491 dtype: float64