n 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 10 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 cubed. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x =8.08 cm cubed and s=0.7 cm cubed. Conduct the appropriate test at the 0.01 level of significance. State the null and alternative hypotheses. Upper H 0: mu equals 9.02 Upper H 1: mu less than 9.02 Identify the t-statistic. (Round to two decimal places as needed. Identify the P-value. P-value(Round to three decimal places as needed Make a conclusion regarding the hypothesis. ▼ Fail to reject Reject the null hypothesis. There ▼ is is not sufficient evidence to claim that the mean hippocampal volume is ▼ equal to less than greater than nothing cm cubed.
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See the answerIn 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 10 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 cubed. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x =8.08 cm cubed and s=0.7 cm cubed. Conduct the appropriate test at the 0.01 level of significance. State the null and alternative hypotheses.
Upper H 0: mu equals 9.02 Upper H 1: mu less than 9.02
Identify the t-statistic. (Round to two decimal places as needed.
Identify the P-value. P-value(Round to three decimal places as needed
Make a conclusion regarding the hypothesis. ▼ Fail to reject Reject the null hypothesis. There ▼ is is not sufficient evidence to claim that the mean hippocampal volume is ▼ equal to less than greater than nothing cm cubed.
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