1 Unit 7 - MAT220_32_Statistics |_2 X POST UNIT 7 - TEST - Ch. 10 x Mail - dale.laynejr@students.pos x | (5) Facebook x | Search HRC * | + 1 C & https://mylab.pearson.com/Student/Player Test.aspx?testld=240485145 to T220_32_Statistics |_2021_22_TERM5 Dale Layne JR 04/20/22 1:33 PM Test: POST UNIT 7 - TEST - Ch. 10 Question 9 of 13 > This test: 13 point(s) possible This question: 1 point(s) possible Submit 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 12 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic lescents 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. te the null and alternative hypotheses. pe integers ofdecimals. Do not round.) ntify the t-statistic. (Round to two decimal places as needed.) tify the P-value. alue =(Round to three decimal places as needed.) ke a conclusion regarding the hypothesis. the null hypothesis. There V sufficient evidence to claim that the mean hippocampal volume is cm3 : : 1 181 50 Vi . (1,1) More Next Statcrunch O SAMSUNG