mylab.pearson.com On + 88 C AS res that are normall... |.. MAT 111 Final Review Quiz P MAT 111 Final Review Quiz S StatCrunch Login Error MAT 111(E)-40 (Mutua SS22) Lauren Dynes Quiz: MAT 111 Final Review Quiz Question 15 of 18 This quiz: 18 point(s) possible This question: 1 point(s) possible Submit quiz In finding a confidence interval for a random sample of 30 students' GPAs, one interval was (2.40, 3.10) and the other was (2.45, 3.05). a. One of them is a 95% interval and one is a 90% interval. Which is which, and how do you know? b. If we used a larger sample size (n = 120 instead of n = 30, would the 95% interval be wider or narrower than the one reported here? a. Choose the correct answer below. O A. The interval (2.40, 3.10) is the 95% interval and (2.45, 3.05) is the 90% interval-95% of the data points fall between 2.40 and 3.10. B. The interval (2.45, 3.05) is the 95% interval and (2.40, 3.10) is the 90% interval-a higher level of confidence results in a narrower confidence interval. C. The interval (2.45, 3.05) is the 95% interval and (2.40, 3.10) is the 90% interval-90% of the data points fall between 2.40 and 3.10. O D. The interval (2.40, 3.10) is the 95% interval and (2.45, 3.05) is the 90% interval-a higher level of confidence results in a wider confidence interval. b. The 95% interval with n = 120 will be than the interval with n = 30 because a larger sample size provides a standard error, and this means a margin of error at the same level of confidence. Time Remaining: 01:12:50 Next Statcrunch Tech help Calculator O esc & delete @ # 6 O 2 3 4 U O P T Y W E R