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Independent random samples are taken at a university to compare the average GPA of seniors to the average GPA of sophomores. Given a 90% confidence interval for the difference between the true average GPAs (seniors - sophomores) of (-0.05, 0.78), what can you conclude?   Question 8 options:   1)  There is no significant difference between the true average GPA for seniors and sophomores.   2)  We do not have enough information to make a conclusion.   3)  We are 90% confident that the average GPA of seniors is less than the average GPA of sophomores.   4)  We are 90% confident that the average GPA of seniors is greater than the average GPA of sophomores.   5)  We are 90% confident that the difference between the two sample GPAs falls within the interval.

Independent random samples are taken at a university to compare the average GPA of seniors to the average GPA of sophomores. Given a 90% confidence interval for the difference between the true average GPAs (seniors - sophomores) of (-0.05, 0.78), what can you conclude?   Question 8 options:   1)  There is no significant difference between the true average GPA for seniors and sophomores.   2)  We do not have enough information to make a conclusion.   3)  We are 90% confident that the average GPA of seniors is less than the average GPA of sophomores.   4)  We are 90% confident that the average GPA of seniors is greater than the average GPA of sophomores.   5)  We are 90% confident that the difference between the two sample GPAs falls within the interval.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Independent random samples are taken at a university to compare the average GPA of seniors to the average GPA of sophomores. Given a 90% confidence interval for the difference between the true average GPAs (seniors - sophomores) of (-0.05, 0.78), what can you conclude?
 

Question 8 options:

 

1) 

 There is no significant difference between the true average GPA for seniors and sophomores.
 

2) 

 We do not have enough information to make a conclusion.
 

3) 

 We are 90% confident that the average GPA of seniors is less than the average GPA of sophomores.
 

4) 

 We are 90% confident that the average GPA of seniors is greater than the average GPA of sophomores.
 

5) 

 We are 90% confident that the difference between the two sample GPAs falls within the interval.
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