(Answered) Researchers wanted to measure the effect of alcohol on the

Statistics

Researchers wanted to measure the effect of alcohol on the development of the hippocampal region in adolescents. The researchers randomly selected 14 adolescents with alcohol use disorders. They wanted to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02cm cubed. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x overbar equals 8.21 and s =0.7. Conduct an appropriate test at the alpha =0.05 level of significance.

Find the test statistic. t0 =

(Round to two decimal places as needed.)

Find the P-value.

The P-value is =

(Round to three decimal places as needed.)

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