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Question # 3 A researcher predicts that listening to music while solving math problems will make a particular brain area more active. To test this, a research participant has her brain scanned while listening to music and solving math problems, and the brain area of interest has a percentage signal change of 58. From many previous studies with this same math problems procedure (but not listening to music), it is known that the signal change in this brain area is normally distributed with a mean of 35 and a standard deviation of 10. Using the .01 level, what should the researcher conclude? Step 1: Answer the following questions Question (a): give the two populations that are compared Question (b): State the research hypothesis Question (c): State the null hypothesis Step 2: Give the characteristics of the comparison distribution Step 3: Give the cutoff(s) of the comparison distribution Step 4: Sample score on comparison distribution Step 5: Decision and illustration