In a study, researchers wanted to measure the effect of alcohol on the hippocampal region, the portion of the brain responsible for long-term memorstorage, in adolescents. The researchers randomly selected 13 adolescents with alcohol use disorders to determine whether the hippocampalvolumes in the alcoholic adolescents were less than the normal volume of 9.02 cm°. An analysis of the sample data revealed that the hippocampalvolume is approximately normal with no outliers and x = 8.13 cm° and s = 0.7 cm°. Conduct the appropriate test at the a = 0.01 level of significance.State the null and alternative hypotheses.Ho: HH1: H(Type integers or decimals. Do not round.)Identify the t-statistic.to(Round to two decimal places as needed.)%3DIdentify the P-value.P-value =(Round to three decimal places as needed.)Make a conclusion regarding the hypothesis.V the null hypothesis. Theresufficient evidence to claim that the mean hippocampal volume is| cm³.

From the given information we conduct the t test.

Answered: study, researchers wanted to measure…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter8: Applications Of Trigonometry

Section8.2: The Law Of Cosines

Problem 3E

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