Hallam, Price, and Katsarou (2002) investigated the influence of background noise on classroom performance for children aged 10 to 12. In one part of the study, calming music led to better performance on an arithmetic task compared to a no-music condition. Suppose that a researcher selects one class of n = 18 students who listen to calming music each day while working on arithmetic problems. A second class of n = 18 serves as a control group with no music. Accuracy scores are measured for each child. Music Control M = 86.4 78.8 SS = 1550 1204 Is there a significant difference between the two conditions? Use a two-tailed test with α = .05. Be sure to show your work for all 5 steps of this hypothesis test.