Use the paired t-interval procedure to obtain the required confidence interval. You may assume that the conditions for using the procedure are satisfied. A test of abstract reasoning is given to a random sample of students before and after completing a formal logic course. The results are shown below. Before 74 81 85 67 92 71 61 78 64 80 After 68 82 83 75 95 66 67 81 71 88 Determine a 95% confidence interval for the difference between the mean score before completing the course and the mean score after completing the course. ...... O A. - 6.0 to 1.4 B. - 5.7 to 1.1 O C. -6.4 to 1.8 O D. -6.7 to 2.1
Use the paired t-interval procedure to obtain the required confidence interval. You may assume that the conditions for using the procedure are satisfied. A test of abstract reasoning is given to a random sample of students before and after completing a formal logic course. The results are shown below. Before 74 81 85 67 92 71 61 78 64 80 After 68 82 83 75 95 66 67 81 71 88 Determine a 95% confidence interval for the difference between the mean score before completing the course and the mean score after completing the course. ...... O A. - 6.0 to 1.4 B. - 5.7 to 1.1 O C. -6.4 to 1.8 O D. -6.7 to 2.1
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Use the paired t-interval procedure to obtain the required confidence interval. You may assume that the conditions for using the procedure are satisfied.
A test of abstract reasoning is given to a random sample of students before and after completing a formal logic course. The results are shown below.
Before 74 81 85 67 92 71 61 78 64 80
After 68 82 83 75 95 66 67 81 71 88
Determine a 95% confidence interval for the difference between the mean score before completing the course and the mean score after completing the course.
....
A. -6.0 to 1.4
B. -5.7 to 1.1
O C. -6.4 to 1.8
O D. -6.7 to 2.1
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