Researchers wanted to measure the effect of alcohol on the development of the hippocampal region in adolescents. The researchers randomly selected 11adolescents with alcohol use disorders. They wanted to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02cm3. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x=8.32 and s=0.8. Conduct an appropriate test at the =0.05 level of significance.

H0 (p / / ) ~ ( / > / < / =) 9.02

H1 (p / / ) ~ ( / > / < / =) 9.02

Find the test statistic.

t0=_____. (Round to two decimal places asneeded.)

Find theP-value.

TheP-value is _____. (Round to three decimal places asneeded.)