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 11

adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm cubed cm3. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x=8.14cm3 and equals=0.7 cm3. Conduct the appropriate test at the 0.01 level of significance.

also

State the hypothesis

Identify thet-statistic.

(Round to two decimal places asneeded.)

Identify theP-value.

Make a conclusion regarding the hypothesis.