On the standardized spatial skills task, normative data reveal that people typically, get µ= 15 correct solutions. A psychologist tests n = 7 individuals who have brain injuries in right cerebral hemisphere. For following data, find out whether or not right-hemisphere damage results in significantly reduced performance on spatial skills task. Test with alpha set at .05 with one tail. Data are as follows: 12, 16, 9, 8, 10, 17, 10