![Stats: Modeling the World Nasta Edition Grades 9-12](https://www.bartleby.com/isbn_cover_images/9780131359581/9780131359581_largeCoverImage.gif)
Concept explainers
(a)
To estimate the percentage of all American males who measure success primarily from their work and use a
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 9E
Explanation of Solution
It is given in the question that time magazine reported the results of a random telephone poll commissioned by the spike network. Thus, we have,
Let us first check the conditions for the following as:
Random condition: It is satisfied as it is assumed that the sample is randomly selected.
Normal condition: It is satisfied as,
Thus, all the conditions are met. Therefore, now, to find the confidence interval we will use the calculator
Thus, the confidence interval will be as:
(b)
To explain what does your confidence interval indicate.
(b)
![Check Mark](/static/check-mark.png)
Explanation of Solution
It is given in the question that time magazine reported the results of a random telephone poll commissioned by the spike network. Thus, the confidence interval will be as:
Thus, our confidence interval indicate that since
(c)
To find out what is the level of significance of this test.
(c)
![Check Mark](/static/check-mark.png)
Answer to Problem 9E
Explanation of Solution
It is given in the question that time magazine reported the results of a random telephone poll commissioned by the spike network. Thus, the confidence interval will be as:
Thus, our confidence interval indicate that since
Chapter 21 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
Additional Math Textbook Solutions
Intro Stats
Statistics for Psychology
Statistics for Business and Economics (13th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
Elementary Statistics: Picturing the World (7th Edition)
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman
![Text book image](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)