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: Student 1 2 3 4 6. 7 9 10 11 12 13 14 15 16 17 18 19 20 Verslon A 90 85 77 96 88 83 93 81 84 71 65 98 93 83 85 91 82 79 74 72 Version B 86 84 80 91 83 80 87 83 80 70 60 99 96 75 78 88 81 74 65 66 Difference (A – B) 4 1 -3 36 -2 4 1 5-1 -3 8 7 3 1 5 9 6
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: Student 1 2 3 4 6. 7 9 10 11 12 13 14 15 16 17 18 19 20 Verslon A 90 85 77 96 88 83 93 81 84 71 65 98 93 83 85 91 82 79 74 72 Version B 86 84 80 91 83 80 87 83 80 70 60 99 96 75 78 88 81 74 65 66 Difference (A – B) 4 1 -3 36 -2 4 1 5-1 -3 8 7 3 1 5 9 6
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
Related questions
Question
Determine if the two versions of her AP Statistics final exam were equally difficult
![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:
Student
2 3
6.
7
8 9 10 11 12 13 14 15 16 17 18 19 20
Verslon A
90 85 77 96
83 93 81 84 71 65 98 93 83 85 91 82 79 74 72
Version B
86 84 80 91 83 80 87 83 80 70 60 99 96 75 78 88 81 74 65 66
Difference (A – B) Ź 4 1 -3 5 5
3
6 -2
5 -1 -3 8 7 3 1 5 9 6
4.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6bfa811e-5464-4643-8887-727be93de7c9%2F2fbcba18-d9d7-47c6-9ce9-a38110461791%2F2z2pvci_processed.jpeg&w=3840&q=75)
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 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:
Student
2 3
6.
7
8 9 10 11 12 13 14 15 16 17 18 19 20
Verslon A
90 85 77 96
83 93 81 84 71 65 98 93 83 85 91 82 79 74 72
Version B
86 84 80 91 83 80 87 83 80 70 60 99 96 75 78 88 81 74 65 66
Difference (A – B) Ź 4 1 -3 5 5
3
6 -2
5 -1 -3 8 7 3 1 5 9 6
4.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 16 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![Glencoe Algebra 1, Student Edition, 9780079039897…](https://www.bartleby.com/isbn_cover_images/9780079039897/9780079039897_smallCoverImage.jpg)
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
![College Algebra (MindTap Course List)](https://www.bartleby.com/isbn_cover_images/9781305652231/9781305652231_smallCoverImage.gif)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
![Holt Mcdougal Larson Pre-algebra: Student Edition…](https://www.bartleby.com/isbn_cover_images/9780547587776/9780547587776_smallCoverImage.jpg)
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
![Glencoe Algebra 1, Student Edition, 9780079039897…](https://www.bartleby.com/isbn_cover_images/9780079039897/9780079039897_smallCoverImage.jpg)
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
![College Algebra (MindTap Course List)](https://www.bartleby.com/isbn_cover_images/9781305652231/9781305652231_smallCoverImage.gif)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
![Holt Mcdougal Larson Pre-algebra: Student Edition…](https://www.bartleby.com/isbn_cover_images/9780547587776/9780547587776_smallCoverImage.jpg)
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
![Calculus For The Life Sciences](https://www.bartleby.com/isbn_cover_images/9780321964038/9780321964038_smallCoverImage.gif)
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
![College Algebra](https://www.bartleby.com/isbn_cover_images/9781938168383/9781938168383_smallCoverImage.gif)