To determine if his teaching method increases students' learning, a professor administers a pretest to his class at the beginning of the semester and then a posttest at the end of the semester. The results from 10 randomly chosen students are given below. Let Population 1 be the Pretest scores and Population 2 be the Posttest scores. Pretest 89 92 67 98 88 98 87 67 94 71 Test Scores Posttest 69 72 61 91 85 84 82 76 91 62 Copy Data Step 1 of 2: Construct a 95% confidence interval for the true mean difference between the scores to determine if the teaching method increases students' knowledge of the course material. Round the endpoints of the interval to one decimal place, if necessary.
To determine if his teaching method increases students' learning, a professor administers a pretest to his class at the beginning of the semester and then a posttest at the end of the semester. The results from 10 randomly chosen students are given below. Let Population 1 be the Pretest scores and Population 2 be the Posttest scores. Pretest 89 92 67 98 88 98 87 67 94 71 Test Scores Posttest 69 72 61 91 85 84 82 76 91 62 Copy Data Step 1 of 2: Construct a 95% confidence interval for the true mean difference between the scores to determine if the teaching method increases students' knowledge of the course material. Round the endpoints of the interval to one decimal place, if necessary.
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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Step 2: interpret the cofidance interval obtain in step 1
Transcribed Image Text:To determine if his teaching method increases students' learning, a professor administers a pretest to his class at the beginning of the semester and then a posttest at the
end of the semester. The results from 10 randomly chosen students are given below. Let Population 1 be the Pretest scores and Population 2 be the Posttest scores.
Pretest
89
92
67
98
88
98
87
67
94
71
Test Scores
Posttest
69
72
61
91
85
84
82
76
91
62
Copy Data
Step 1 of 2: Construct a 95% confidence interval for the true mean difference between the scores to determine if the teaching method increases students' knowledge
of the course material. Round the endpoints of the interval to one decimal place, if necessary.
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