Step 2 of 2 : Interpret the confidence interval obtained in Step 1.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
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.
Test Scores
Pretest | Posttest |
---|---|
52 | 56 |
54 | 92 |
92 | 95 |
50 | 50 |
88 | 99 |
66 | 78 |
50 | 53 |
52 | 88 |
90 | 93 |
86 | 99 |
Step 2 of 2 : Interpret the confidence interval obtained in Step 1.
please highlight the answer
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