Fran is training for her first marathon, and she wants to know if there is a significant difference between the mean number of miles run ea individual runners who are training for marathons. She interviews 40 randomly selected people who train in groups, and finds that they ru week. Assume that the population standard deviation for group runners is known to be 4.6 miles per week. She also interviews a random on their own and finds that they run a mean of 48.8 miles per week. Assume that the population standard deviation for people who run b week. Test the claim at the 0.02 level of significance. Let group runners training for marathons be Population 1 and let individual runners Population 2. Step 2 of 3: Compute the value of the test statistic. Round your answer to two dęcimal places.
Fran is training for her first marathon, and she wants to know if there is a significant difference between the mean number of miles run ea individual runners who are training for marathons. She interviews 40 randomly selected people who train in groups, and finds that they ru week. Assume that the population standard deviation for group runners is known to be 4.6 miles per week. She also interviews a random on their own and finds that they run a mean of 48.8 miles per week. Assume that the population standard deviation for people who run b week. Test the claim at the 0.02 level of significance. Let group runners training for marathons be Population 1 and let individual runners Population 2. Step 2 of 3: Compute the value of the test statistic. Round your answer to two dęcimal places.
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
![Fran is training for her first marathon, and she wants to know if there is a significant difference between the mean number of miles run each week by group runners and
individual runners who are training for marathons. She interviews 40 randomly selected people who train in groups, and finds that they run a mean of 46.6 miles per
week. Assume that the population standard deviation for group runners is known to be 4.6 miles per week. She also interviews a random sample of 45 people who train
on their own and finds that they run a mean of 48.8 miles per week. Assume that the population standard deviation for people who run by themselves is 2.4 miles per
week. Test the claim at the 0.02 level of significance. Let group runners training for marathons be Population 1 and let individual runners training for marathons be
Population 2.
Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F36a0cec1-64c3-4c43-b20d-bcd7032670a8%2F7713fc7a-44ef-4ec9-ba12-682a93796272%2F7fw365_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Fran is training for her first marathon, and she wants to know if there is a significant difference between the mean number of miles run each week by group runners and
individual runners who are training for marathons. She interviews 40 randomly selected people who train in groups, and finds that they run a mean of 46.6 miles per
week. Assume that the population standard deviation for group runners is known to be 4.6 miles per week. She also interviews a random sample of 45 people who train
on their own and finds that they run a mean of 48.8 miles per week. Assume that the population standard deviation for people who run by themselves is 2.4 miles per
week. Test the claim at the 0.02 level of significance. Let group runners training for marathons be Population 1 and let individual runners training for marathons be
Population 2.
Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.
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
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman