In astudy, researchers wanted to measure the effect of alcohol on the hippocampalregion, the portion of the brain responsible forlong-term memorystorage, in adolescents. The researchers randomly selected17adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of9.02cm3.An analysis of the sample data revealed that the hippocampal volume is approximately normal with x =8.16cm3 and s=0.7cm3.Conduct the appropriate test at the =0.01level of significance.

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