math
posted by Rachael .
A researcher was interested in the emotional effects of music on exam performance. Before their exam, a professor took one group of students into a room in which calming music was played. A different group of students were taken to another room in which new wave hard rock was being played. The students then took the exam and their scores were reported. What type of analysis would be most appropriate?
A.Paired (dependent) ttest
B.Independent (unpaired) ttest
C.Analysis of Variance ANOVA
D.Repeated Measures ANOVA

B independent

B.Independent (unpaired) ttest