Selecting an inference type is a bit buggy

[joewandy]

1. Select an inference type, e.g. t-test. The page will reload and the correct parameters are shown for t-test. Don't submit yet.
2. Change the inference type, e.g. PCA. The parameters for t-tests are still there and the ones for PCA are not shown.

[joewandy]

In general the multiple dropdown lists on that page is not working correct. They should be made dependant on each other (selecting one should filter the other based on the available option).