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 2020 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.029.02 cm cubedcm3. An analysis of the sample data revealed that the hippocampal volume is approximately normal with no outliers and x overbarxequals=8.128.12 cm cubedcm3 and sequals=0.70.7 cm cubedcm3. Conduct the appropriate test at the alphaαequals=0.010.01 level of significance. Question content area bottom Part 1 State the null and alternative hypotheses. Upper H 0H0: muμ ▼ enter your response here Upper H 1H1: muμ ▼ enter your response here (Type integers or decimals. Do not round.) Part 2 Identify the t-statistic. t 0t0equals=enter your response here (Round to two decimal places as needed.) Part 3 Identify the P-value. P-valueequals=enter your response here (Round to three decimal places as needed.) Part 4 Make a conclusion regarding the hypothesis. ▼ the null hypothesis. There ▼ sufficient evidence to claim that the mean hippocampal volume is ▼ enter your response here cm cubedcm3.