Chi Square test, or some other way?
hi, here's the problem my girlfriend is having with some genetics she's working on.
As you can see on the spreadsheet attached, A sample tests positive or negative for whatever it is she's testing. She also finds the concentration of some other thing in that given sample.
She wants to know if there is some kind of relationship between Negativeness(or positiveness) and the lowness(or highness) of the concentration.
She's talking about P values and Chi square tests and stuff, but we are not exactly sure how to (or whether we should) apply them to this problem. What would you suggest?
Thanks very much for having a look