Answer:
The best answer to the question: Dr. Baker´s findings support which hypothesis, would be: a research hypothesis.
Step-by-step explanation:
Dr. Baker sets out an experiment in which he wants to measure the differences between art students and math students regarding their reasoning abilities when taking a math reasoning abilities test. Most likely Dr. Baker hypothesizes that math students would rank higher than art students given that creative minds tend to be less stringent in logical thinking patterns, than scientific, or mathematical minds. However, the results he finds are totally different to his expectations and he finds out that his probable hypothesis is not correct. Due to the fact that the study type included experimentation, the selection of sample groups to test, and the implementation of an actual experimenting tool (the test), this study done by Dr. Baker is an experimental research study and it requires a research hypothesis.