Nielsen Research Analyst interview questions

Applied online through university recruitment. Was invited to complete a reasoning test. The test included basic statistics questions (high-school level problems) along with a case study at the end, giving a client a recommendation. The test seemed easy but I didn't not get invited back to any further steps. It seems like the test was used to weed out candidates. I'm certain all the math questions were answered correctly. Perhaps they were looking for unique answers to the case study.

A written test followed by three rounds of interviews. First was technical and over the phone. Second was face to face and technical. Third was general discussion and over the phone. TEch rounds were based on the CV. General discussion was with the ofshore manager and more in terms of interests and what to expect at the job