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 20 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02

An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x=8.04 and s=0.8

Conduct the appropriate test at the alpha=0.01 level of significance.

State the null and alternative hypothesis

Identify the t-statistic

Identify the P-Value

Make a conclusion regarding the hypothesis