During Spring 2016, 90 randomly selected Purdue undergrads were asked if, in a typical day, they watch something on an actual television set. A similar survey of 68 Purdue staff members was also conducted. The results are recorded in the Purdue TV Watchers dataset. Use Minitab to compute a 90% confidence interval based on these samples for the difference between the proportion of undergrads and staff members who watch something on a TV set in a typical day and give an interpretation of your interval. In particular, are we 90% confident that a higher percentage of staff members watch a TV on a typical day than undergrads.

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe