4. Find a 95% confidence interval for the difference of two means when you have independent samples, both of size 64, from two populations, in which the variances are not known to be equal. In this case, n₁=64, s₁²=6.1, the first sample mean is equal to 7.9; n2 =64, s₂²-10.4, the second sample mean is equal to 8.5 Interpret the interval once you find it. Namely, can you conclude one mean is greater than the other mean and if so, which one?
4. Find a 95% confidence interval for the difference of two means when you have independent samples, both of size 64, from two populations, in which the variances are not known to be equal. In this case, n₁=64, s₁²=6.1, the first sample mean is equal to 7.9; n2 =64, s₂²-10.4, the second sample mean is equal to 8.5 Interpret the interval once you find it. Namely, can you conclude one mean is greater than the other mean and if so, which one?
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
![4. Find a 95% confidence interval for the difference of two means when you
have independent samples, both of size 64, from two populations, in which
the variances are not known to be equal. In this case, n₁-64, s₁²=6.1, the
first sample mean is equal to 7.9; n2 =64, s2²-10.4, the second sample mean
is equal to 8.5
Interpret the interval once you find it. Namely, can you conclude one mean
is greater than the other mean and if so, which one?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F77548912-c51c-4c9d-8b51-f3905a3bec75%2F9adfd6a7-fd07-4d5f-ba26-6b0e59517e06%2Fu9zwdwl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. Find a 95% confidence interval for the difference of two means when you
have independent samples, both of size 64, from two populations, in which
the variances are not known to be equal. In this case, n₁-64, s₁²=6.1, the
first sample mean is equal to 7.9; n2 =64, s2²-10.4, the second sample mean
is equal to 8.5
Interpret the interval once you find it. Namely, can you conclude one mean
is greater than the other mean and if so, which one?
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.
Step by step
Solved in 4 steps with 32 images
![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