The following table shows the number of wins eight teams had during a football season. Also shown are the average points each team scored per game during the season. Construct a 90% confidence interval to estimate the average number of wins for teams that scored an average of 22 points a game. E Click the icon to view the data table. Determine the upper and lower limits of the confidence interval. UCL = LCL = (Round to three decimal places as needed.)

See the graph of data below to answer the following question Obtain a 95% confidence interval for the difference between the mean rates of return.  Interpret the interval.

Find the confidence level and α for an 86​% confidence interval. What is the confidence​ level? Determine the value of α.

We would like to create a confidence interval for the mean. Which of the following would produce the smallest margin of error? Select one: a.A 95% confidence level and a sample size of 150 subjects b. A 99% confidence level and a sample size of 600 subjects. c. A 99% confidence level and a sample size of 150 subjects. d.A 95% confidence level and a sample size of 600 subjects.

Four students are instructed to calculate a confidence interval based on the same sample mean (xbar: 0.76) and the same sample standard deviation s. However, each student is given a different sample size and confidence level. The following are the intervals obtained by the four students. Which of the following must be incorrect? A. (0.09, 1.43) B. (-1.11, 2.89) C. (-0.57, 2.09)  D. (-2.22, 3.74)

Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 1005 and x = 580 who said "yes." Use a 95% confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) ew an example Get more help. MacBook Air ... Clear all Chec.