Glancing at the data, it looks like the median EA at several ages gives 0 as well as the median non-EA. You might want to separate the 0 set from everything else and then answer two questions:
what percentage of EAs/non-EAs donate any money
when they give, how much do EAs give, how much do non-EAs give.
I think this makes more sense then what is happening now- the lines don’t seem to fit the data very well.
Glancing at the data, it looks like the median EA at several ages gives 0 as well as the median non-EA. You might want to separate the 0 set from everything else and then answer two questions:
what percentage of EAs/non-EAs donate any money when they give, how much do EAs give, how much do non-EAs give.
I think this makes more sense then what is happening now- the lines don’t seem to fit the data very well.