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 15 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x 8 08 cm and s 07 cm Conduct the appropriate test at the a 0.01 level of significance.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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Chapter11: Data Analysis And Displays
Section11.3: Shapes Of Distributions
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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 15 adolescents with alcohol use disorders to
determine whether the hippocampal volumes in the alcoholicC adolescents were less than the normal volume of 9.02 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x 8.08 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 =
9.02
9.02
H H
(Type integers or decimals. Do not round.)
Identify the t-statistic.
to
-5.200 (Round to two decimal places as needed.)
%3D
Identify the P-value.
P-value =000 (Round to three decimal places as needed.)
%3D
Make a conclusion regarding the hypothesis.
Reject
the null hypothesis. There
is
sufficient evidence to claim that the mean hippocampal volume is
less than
9.02 cm.
(1,1)
More
Enter your answer in each of the answer boxes.
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CCEL
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POUP
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SYS RO
BREAK
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E ELL
BACKSPACE
1
LOCK
R
Y
OME
00
Transcribed Image Text:Question Help 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 15 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholicC adolescents were less than the normal volume of 9.02 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x 8.08 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 = 9.02 9.02 H H (Type integers or decimals. Do not round.) Identify the t-statistic. to -5.200 (Round to two decimal places as needed.) %3D Identify the P-value. P-value =000 (Round to three decimal places as needed.) %3D Make a conclusion regarding the hypothesis. Reject the null hypothesis. There is sufficient evidence to claim that the mean hippocampal volume is less than 9.02 cm. (1,1) More Enter your answer in each of the answer boxes. 10:47 PM P Type here to search 10/23/2020 msi CCEL SCROLL LOCK PAUSE INSERT CELETE POUP F4 FS F6 F11 PRT SCR P1 田 SYS RO BREAK HOME E ELL BACKSPACE 1 LOCK R Y OME 00
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