10.3.15-1 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 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x=8.03 cm and s =0.8 cm. Conduct the appropriate test at the a= 0.01 level of significance. Ho:H = 9.02 H:p < 9.02 (Type integers or decimals. Do not round.) Identify the t-statistic. to = -5.53 (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.)

10.3.15-1 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 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x=8.03 cm and s =0.8 cm. Conduct the appropriate test at the a= 0.01 level of significance. Ho:H = 9.02 H:p < 9.02 (Type integers or decimals. Do not round.) Identify the t-statistic. to = -5.53 (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.)

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MATLAB: An Introduction with Applications

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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10.3.15-T
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 cm. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x= 8.03 cm and s =0.8 cm°. Conduct the appropriate test at
the a= 0.01 level of significance.
Ho: = 9.02
H1:p < 9.02
(Type integers or decimals. Do not round.)
Identify the t-statistic.
to = - 5.53 (Round to two decimal places as needed.)
Identify the P-value.
P-value = (Round to three decimal places as needed.)

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