Question: Psychology and Human Behavior A new study suggests that the speed of a person's step is related to the genre of music being listened to while walking. A random sample of 18 adults was obtained. Each walked in a circular path while listening to two different genres of music, hard rock and ballads. The steps per minute for each person for each genre were recorded.
a. What is the common characteristic that makes these data paired?
b. Assume normality. Conduct the appropriate hypothesis to determine whether there is any evidence to suggest that the population mean steps per minute listening to hard rock is greater than the population mean steps per minute listening to ballads. Use a = 0.01.