A researcher has designed the following experiment to test if art in a classroom lowers test anxiety in students who suffer from that. 1.first the researcher took a random sample of 30 students who suffer from test anxiety at a highschool 2.then they had the students take a test in a room devoid of any artwork and then rate their anxiety levels at the start and end of exam 3.afterwards they had the same students take a test in a room with several paintings and rate their anxiety levels at the start and end of exam A. What is the treatment in the experiment B. Is there a control or placebo in this experiment? Explain if so C. What is the data being collected in the experiment? Quantitive or qualitative? D. The researches found that 8 of the students found their anxiety levels decreased w paintings. If high school has 367 students who suffer from test anxiety how many should we expect to lower anxiety with taking test with paintings