I have two questions:
1. I calculated the WTP with the zero-centered utilties from the utility report of Sawtooth Lighthouse Studio (HB estimation) for three different groups in the same study. I put their groups as a covariate. I see now that there is a difference, but I am not sure if the difference is significant. How can I assess it?
2. To see if the utilites are significant, I look into the alpha data and perform a t-test (when I only have two groups) to see if they are significantly different from each other(I exclude the first 10,000 iterations that were used for convergence). But what do I do when I have three groups?
Thanks in advance for your help. Enjoy your weekend!