In a previous alternate exercise, Mrs. Gallas hoped to determine if the two versions of her AP® Statistics final exam were equally difficult. Last year, she set up a randomized comparative experiment, and the data showed no statistically significant difference in the scores between the two versions. This year, she selected a random sample of 20 students from the large district and used a matched pairs design, where each student was given both versions of the test. For each student, the test order was randomized. Here are the scores, along with the differences in scores for each student: 8. 9 10 11 12 13 14 15 16 17 18 19 20 Student 1 6. 7 Version A 90 85 77 96 88 83 93 81 84 71 65 98 93 83 85 91 82 79 74 72 86 84 80 91 83 80 87 83 80 70 60 99 96 75 78 88 81 74 65 66 3 15 9 Verslon B 1 -3 3 6 -2 4 1 5 -1 -3 8 7 Difference (A - B) 4.
In a previous alternate exercise, Mrs. Gallas hoped to determine if the two versions of her AP® Statistics final exam were equally difficult. Last year, she set up a randomized comparative experiment, and the data showed no statistically significant difference in the scores between the two versions. This year, she selected a random sample of 20 students from the large district and used a matched pairs design, where each student was given both versions of the test. For each student, the test order was randomized. Here are the scores, along with the differences in scores for each student: 8. 9 10 11 12 13 14 15 16 17 18 19 20 Student 1 6. 7 Version A 90 85 77 96 88 83 93 81 84 71 65 98 93 83 85 91 82 79 74 72 86 84 80 91 83 80 87 83 80 70 60 99 96 75 78 88 81 74 65 66 3 15 9 Verslon B 1 -3 3 6 -2 4 1 5 -1 -3 8 7 Difference (A - B) 4.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:In a previous alternate exercise, Mrs. Gallas hoped to determine if the two versions of her
AP® Statistics final exam were equally difficult. Last year, she set up a randomized
comparative experiment, and the data showed no statistically significant difference in the
scores between the two versions. This vear, she selected a random sample of 20 students
from the large district and used a matched pairs design, where each student was given both
versions of the test. For each student, the test order was randomized. Here are the scores,
along with the differences in scores for each student:
1 2
9 10 11 12 13 14 15 16 17 18 19 20
Student
3
4 5
6.
7
Version A
90 85 77 96 88 83 93 81 84 71 65 98 93 83 85 91 82 79 74 72
86 84 80 91 83 80 87 83 80 70 60 99 96 75 78 88 81 74 65 66
3 15 9 6
Version B
6 -2 4
15 -1 -3
8 7
Difference (A - B)
1 -3
5 5
3
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