Tegan was hit on the head during a ball game. Her coach had her tap her finger for 20 seconds. She tapped her finger 90 times. The mean is 100 taps with a standard deviation of 20 taps. Her coach decides to send her to the hospital to see if she has neurological damage. Why might this be a good idea, even though almost one-third of all neurologically healthy people tap this slow or slower
