Merck Bio-Process Technician interview questions

I took an initial 25 minute questionairre and then about a month later I was called in to take a 3 hour assessment involving math, science tools, and multitasking. About a month later, I was finally asked to attend an Interview. I interviewed with 2 current employees of the same position inside a transparent closed door meeting room next to the office cubicles. The interview took 30 minutes. The people inside the facility seemed relatively happy and it looked like the dress code for employees is a Merck polo shirt with khakis or even possibly jeans.