Concept explainers
(a)
To explain does the interval provide convincing evidence of a difference in the true
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 49E
No.
Explanation of Solution
The
Then we note that the confidence interval contains zero which implies that it is likely that the difference in the mean reaction time is zero and thus likely that there is no difference.
This implies that there is no convincing evidence of a difference in the true mean reaction time of athletes and non-athletes.
(b)
To explain does the interval provide convincing evidence that the true mean reaction time of athletes and non-athletes is the same or not.
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 49E
No.
Explanation of Solution
The
Then we note that the confidence interval contains zero which implies that it is likely that the difference in the mean reaction time is zero and thus likely that there is no difference.
However, there is no evidence that the true mean reaction time of athletes and non-athletes is the same because the difference of zero is one of the plausible values but there are many other plausible values in the confidence interval for the difference.
Chapter 10 Solutions
PRACTICE OF STATISTICS F/AP EXAM
Additional Math Textbook Solutions
Elementary Statistics: Picturing the World (7th Edition)
College Algebra with Modeling & Visualization (5th Edition)
Pre-Algebra Student Edition
Intro Stats, Books a la Carte Edition (5th Edition)
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