(24 unread) - x * Course Hero X * Dashboard x * Course Hero X Find Schools X / one.nku.edu | X Lecture 5.2 - ( X NKU Imath As X + X C https://imath.nku.edu/assessment/showtest.php?action=skip&to=4 Course Forums Calendar Gradebook Log Out Home > STA 205-021 F22, 2nd 7 weeks > Assessment gary steurer HW 5.2: Confidence Interval for the Mean Due Mon 11/21/2022 11:59 pm Show Intro/ Instructions Questions A public university is considering a change in the way students pay for their undergraduate classes. To investigate whether the change will be financially beneficial, the university randomly samples 392 full-time students and estimates the mean number of credit hours taken per semester with the following 96% confidence interval: (14.5917, 15.3109). Use this interval to Q 1 [3/8] answer the following questions: C Q 2 (0/8) V Q 3 [7/8] a. Which of the following interpretation is most appropriate for the interval calculated? C Q 4 (0/8) C Q 5 (0/4) With 96% confidence the true mean number of credit hours taken is between 14.5917 and 15.3109. Q 6 [2/2] The number of credit hours taken is between 14.5917 and 15.3109 with 96% confidence. Q7 [2/2] O C Q 8 (0/10) 96% of all students at this university will take between 14.5917 and 15.3109 credit hours. Grade: 14/50 The interval 14.5917 hours and 15.3109 hours contains the true mean number of credit hours taken 96% of the time. b. What is the margin of error for this interval? Write your answer in the blank provided rounded to four decimal places. Print Version c. If a 94% confidence interval had been calculated, which of the following best describes the margin of error for this interval? . The margin of error would have been larger. The margin of error would have remained the same. O The margin of error would have been smaller. d. Suppose the following hypotheses had been tested: H: = 16 versus Ha: /