5 Jerry Is Asked To Find A Confidence Interval For The Mean Age Of High School Students Who Graduate After Four Years O 1 (55.99 KiB) Viewed 81 times
5 Jerry Is Asked To Find A Confidence Interval For The Mean Age Of High School Students Who Graduate After Four Years O 2 (55.99 KiB) Viewed 81 times
5) Jerry is asked to find a confidence interval for the mean age of high school students who graduate after four years of high school a) A previous confidence interval was created with lower bound 16.9 years and upper bound 17.7 years. What were the point estimate and margin of error used to create this confidence interval? (4 points) E be? b) Jetry wants to create a 99% confidence interval, and he hasf® Ihigh school students to survey to create his confidence interval. What should his critical value, 99 = .01 2005 3/2 01/2 (3 points) +/ c) Jerry's point estimate is a point estimate of x = 17.4 years, and a standard deviation of s = 0.90 years. Find the margin of error, E. S= 90- 46 points) + 2 .005 52.586 17.4 0.90 d) Find the upper and lower bound of Jerry's confidence interval. (4 points) c) Circle the correct interpretation of Jerry's confidence interval. (3 points) a) There is a 99% probability that sample mean age, x, of high school students who graduate is in Jerry's confidence interval b) we are 99% confident that Jerry's confidence interval contains the sample mean age, x, of high school students who graduate c) There is a 99% probability that the population mean age, H, of high school students who graduate is in Jerry's confidence interval. (a) We are 99% confident that Jerry's confidence interval contains the population mean age, H. of high school students who graduate.
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