Researchers wanted to measure the effect of alcohol on the development of the hi

Question

Researchers wanted to measure the effect of alcohol on the development of the hippocampal region in adolescents The researchers randomly selected 11 adolescents with alcohol use disorders. They wanted to determine whether the hippocampal volumes in the alcoholic 902, A analys softhe sample data revealed that the hippocampal volume is approxi mately 006 level of significance adolescents were less than the normal volume of normal with x#8 16 and s.06 Conduct an appropriate test at the Choose the comect hypotheses H. 1902 H11 1902 Find the test statistic Round to two decimal places as needed) Find the P-value The P-value is Round to three decimal places as needed ) Click to select your answers)

Explanation / Answer

n = 11

Ho: Mu>=9.02
Ha: Mu< 9.02

Test statistic, t0 = (8.16-9.02)/(.6/sqrt(11)) = -4.75

The P-Value is .00039.

The result is significant at p < .05.

A is right. We reject Ho because p-value is less than .05. We reject null hypothesis because we have enough evidence.

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