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Effect of alcohol on the hippocampal? region

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Reference no: EM132581585

In a? study, researchers wanted to measure the effect of alcohol on the hippocampal? region, the portion of the brain responsible for? long-term memory? storage, in adolescents. The researchers randomly selected 11 adolescents with alcohol use disorders 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 no outliers and x overbar x = 8.01 cm3 and s = 0.8 cm3. Conduct the appropriate test at the α = 0.01 level of significance. State the null and alternative hypotheses.

Upper H 0

H0?: μ = 9.02

H1?: μ < 9.02

?(Type integers or decimals. Do not? round.)

Identify the? t-statistic.

t0 =______

?(Round to two decimal places as? needed.)

 

Reference no: EM132581585

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