If researchers wanted to measure the effect of alcohol on the development of the hippocampal region in adolescents. The researchers randomly selected 12 adolescents with alcohol use disorders. They wanted 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 x=8.46 s=0.6. How would I conduct an appropriate test at the α=0.05 level of significance to find the test statistic t0= __ and then also determine the P-Value?