STAT Chapter 10

2. Some folks at Terry's school claim they better while listening to their favorite kind of music. Terry thinks music interferes 1with thinking clearly. To test this, she recruits 84- volunteers and randomly assigns them to two groups. The "Music" group listens to their favorite music while playing a "matching\" memory game. The "No Music\" group plays the same game in silence. Below are summary statistics for the number of turns it took each subject to complete the game {fewer turns indicates a better performance]. M\" [a] [-1- pts] Is there convincing evidence that listening to music increases the number of turns required to nish the memory game? (b) [1 pt] Suppose Terry allowed people to choose whether or not they were in the group that listened to music while playing the game. Give an example of a problem that might arise if the subjects were allowed to do this