A survey of an urban university showed that 950 of 1,420 students sampled supported a fee increase to fund improvements to the student recreation center. Using the 99% level of confidence, what is the confidence interval for the proportion of students supporting the fee increase?   Multiple Choice   [0.645, 0.692]   [0.629, 0.707]   [0.649, 0.689]   [0.637, 0.701]

A study of 30 college students showed that 25 are binge watching series. Find a 95% confidence interval for the proportion of students that are binge watching series.

What confidence coefficient was used to generate the confidence​ intervals?

A random sample of high school seniors were asked whether they were applying for college. The resulting confidence interval for the proportion of students applying for college is (0.65,0.69). What is the margin of error?

A random sample of college students were asked whether they study more than four hours per week in the library. The resulting confidence interval for the portion of college students who study more than four hours in the library is (0.45, 0.79). What is the margin of error?

Out of 3064 respondants, 919 of them said they have a dog. Using this data, compute a 95% confidence interval for the true proportion of people who own a dog.

In a survey of 2490 golfers, 22% said they were left-handed. The survey's margin of error was 4%. Construct a confidence interval for the proportion of left-handed golfers. O (0.17, 0.27) (0.18, 0.26) ○ (0.18, 0.22) ○ (0.26, 0.30)

In the United States, 1000 residents aged 15 or older were surveyed and 870 replied that they were satisfied with the water quality. The 90% confidence interval estimate of all U.S residents satisfied with their water quality is

Twenty-two car salespeople were sampled to see how many cars they sold in a month; the following data was obtained: 26, 20, 22, 18, 21, 14, 24, 28, 17, 23, 28, 29, 18, 17, 24, 26, 19, 27, 26, 22, 23, 25 Construct a 95% confidence interval for the mean number of cars sold per month by the population of car salespeople. S = t = Margine of Error: E = We are 95% confident that, on average, car salespeople sell between cars and cars per month.

To estimate the proportion of students who purchase their textbooks used, 500 students were sampled. 210 of these students purchased used textbooks. Find a 99% confidence interval for the proportion of students who purchase used text books.