Hi
I need to prove, statistically, that these two curves are parallel. I have made a data table, fit a non linear 4PL curve and ran a parallelism test. Unfortunately my statistical knowledge is limited and I don´t know how to interpret the results. I would assume since the Prob value of the F test is below 0,05 the result is significant and therefore the null hypotheses is correct and and the lines are parallel. However the Prob value shows up orange, which confuses me.
Could someone help me make sense of this? And also explain the importance of the Prob ChiSq.
Thank you 