Question I need help with the following question:A college admissions officer for the school’s online undergraduate program wants to estimate the mean age of its graduating students. The administrator took a random sample of 40 from which the mean was 24 years and the standard deviation was 1.7 years. If the mean age of online undergraduate […]
Question Hi. I need help with the following question:The Center for Disease Control takes periodic randomized surveys to track health of Americans. In a survey of 4881 adults in 2007-2008, 1674 were obese (body mass index BMI ≥ 30). In a survey of 5181 adults in 2011-2012, 1808 were obese. Complete parts A, B, and C […]
Question I need help with the following question:A random sample of 59 students was selected from the PSU student data base. Each student was asked their Sex and Height (in inches). Below are the summary results: Sex N Mean SD Female 42 66.10 2.58 Male 17 70.12 3.66 a) Using the summary information, estimate with 99% […]
Question Hi. I need help with the example below:A manufacturer of sprinkler systems used for fire protection in office buildings claims that the true average system-activation temperature is 130 . A sample of n=9 systems, when tested, yields a sample average activation temperature of 131.08 F with a standard deviation 1.5F. Suppose the distribution of […]
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