Can you please help unknown standard deviation

Apps (c) New Tab CBS Sports - News,... Notifications Mail - beauty 1969... https://consultqa.Cl.. Microbiology The average American consumes 80 liters of alcohol per year. Does the average college student consume 2021-3 less alcohol per year? A researcher surveyed 13 randomly selected college students and found that they averaged 77.3 liters of alcohol consumed per year with a standard deviation of 20 liters. What can be Home concluded at the the a = 0.05 level of significance? Announcements a. For this study, we should use |Select an answer Account b. The null and alternative hypotheses would be: Syllabus Modules Ho: ? Select an answer v Dashboard Grades H1: ? v Select an answer v Courses People c. The test statistic ? v = (please show your answer to 3 decimal places. ) Office 365 d. The p-value = (Please show your answer to 4 decimal places.) Calendar My Media e. The p-value is ? v a Eb Media Gallery f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... Inbox Secure Exam The data suggest that the population mean amount of alcohol consumed by college students is O Proctor (Proctorio) not significantly less than 80 liters per year at a = 0.05, so there is statistically insignificant evidence to conclude that the population mean amount of alcohol consumed by college History Library students is less than 80 liters per year. The data suggest the population mean is not significantly less than 80 at or = 0.05, so there is Make Tuition statistically insignificant evidence to conclude that the population mean amount of alcohol Help Payment consumed by college students is equal to 80 liters per year. The data suggest the populaton mean is significantly less than 80 at or = 0.05, so there is Accredible statistically significant evidence to conclude that the population mean amount of alcohol consumed by college students is less than 80 liters per year. K Class Notebook