It is really area dependent. Most AMR locations don't even have skills testing.
But normally it will be a medical and/or trauma assessment mixed with other random skills.
They don't look for it to follow NREMT perfectly. They are looking instead for a good/fairly good assessment from a competent EMT.
For my area, at least, you take the skills test and if you pass then you get an interview with the supervisors, General Manager (aka Boss), and/or field training officers