On a standardized spatial skills task, normative data reveal that people typically get μ =23 correct solutions. A psychologist tests n = 7 individuals who have brain injuries in the right cerebral hemisphere. Using all 5 hypothesis testing steps, determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task at the p < .01 level. The data are as following 13     19     11     8     18     19     25

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