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 20 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= 8.17 cm and s=0.8 cm. Conduct the appropriate test at the a = 0.01 level of significance. State the null and alternative hypotheses. Ho:H = 9.02 H;: < 9.02 (Type integers or decimals. Do not round.) Identify the t-statistic. to (Round to two decimal places as needed.)
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 20 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= 8.17 cm and s=0.8 cm. Conduct the appropriate test at the a = 0.01 level of significance. State the null and alternative hypotheses. Ho:H = 9.02 H;: < 9.02 (Type integers or decimals. Do not round.) Identify the t-statistic. to (Round to two decimal places as needed.)
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 8E
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Need help finding the followng:
- Identify t- statistic
- what is the P value=
Transcribed Image Text: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 20 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 = 8.17 cm3 and
s = 0.8 cm³. Conduct the appropriate test at the a = 0.01 level of significance.
.....
State the null and alternative hypotheses.
Ho: H
9.02
H1:µ < 9.02
(Type integers or decimals. Do not round.)
Identify the t-statistic.
to = (Round to two decimal places as needed.)
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