One population proportion test: Which of the following situations involves testing a claim about a single population proportion? Group of answer choices The National Institute of Mental Health estimates that in 2012, 6.9% of all U.S. adults had at least one major depressive episode in the past year. The university health center director believes that the figure for female college students is higher than this. A CNN article reported that members of the class of 2013 graduated with an average $35,200 in college-related debt. A student is interested in investigating whether the average debt is higher among students graduating from her college this year. A professor wants to know whether student performance is lower in earlier afternoon classes, compared to evening classes. The proportion of students who passed the most recent exam in her early afternoon class was 8% less than the proportion of students who passed the same exam in her evening class. Are women better at multitasking than men? Researchers conducted a multitasking experiment in which 120 men and 120 women played a computer game in which they were asked to carry out two tasks at the same time. The female group had an average speed that was faster than that of the male group