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 selected 10 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm3. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x=8.02 cm3 and s=0.8 cm3. Conduct the appropriate test at the =0.01 level of significance.

State the null and alternative hypotheses.

Identify thet-statistic.

Identify theP-value.

Make a conclusion regarding the hypothesis.

______________ the null hypothesis. There ______

sufficient evidence to claim that the mean hippocampal volume is _________

___ cm3.