Complete this exercise by hand, show all your work on how you got your answer. On a standardized spatial skills task, data reveal that people typically get, on average, 15 correct solutions. A psychologist tests seven individuals who have brain injuries in the right cerebral hemisphere. For the following data, determine whether or not brain damage results in significantly reduced performance on the spatial skills task. Test with alpha set at 0.05. The data are as follows: 12, 16, 9, 8, 10, 17, 10.