According to the Government Accounting Office (GAO), 80% of…

According to the Government Accounting Office (GAO), 80% of all college students in 2024 had health insurance. A survey of 800 students at the University of Arizona indicated that 83% of them had health insurance. You setup a hypothesis test to determine if the students at the University of Arizona are insured at the same proportion as all other college students. At the α = 0.05 level and based on this data, what is your conclusion? (Show your work on the scratch paper for full credit)

According to the Government Accounting Office (GAO), 80% of…

According to the Government Accounting Office (GAO), 80% of all college students in 2024 had health insurance. A survey of 800 students at the University of Arizona indicated that 83% of them had health insurance. In conducting a hypothesis test, what is our parameter of interest?

A manufacturer of sprinklers for fire protection in building…

A manufacturer of sprinklers for fire protection in buildings claims that the true average system activation temperature is 130 degrees F. Given that the population is normal, you test 9 sprinklers. Your sample has an average temperature for activation of 131.08 degrees with an  degrees. At a significance of α = 0.01, what is your conclusion about the test that the actual average is 130 degrees?