Hypothesis test with 2 means in the null hypothesis
I am looking at the "Weight Gain" file that came with JASP, and I am making a claim that the higher the weight before value is, the higher the difference value is. How can I actually test that hypothesis though? A one sample T-test doesn't seem to be correct.
Comments
A correlation between B (the "before" value) and D (a before-after difference score that you compute).
R