Final answer:
This study is a statistic experiment in the field of Mathematics that aims to determine which desk chair was used first by flipping a coin for each employee.
Step-by-step explanation:
This study can be categorized as a statistic experiment in the field of Mathematics. Specifically, it falls under the branch of probability and statistics. The study aims to determine which chair was used first (new desk chair or current desk chair) by flipping a coin for each employee. The ratings given by the employees at the end of each two-week period provide data for analysis and evaluation.