25. A recent survey found that 82% of college graduates believe their degree was a good investment (cnbc.com, February 2 2020). Suppose a random sample of 100 college graduates is taken. a. What is the expected value and the standard error for the sampling distribution of the sample proportion? b. What is the probability that the sample proportion is less than 0.80? c. What is the probability that the sample proportion is within ± 0.02 of the population proportion?
25. A recent survey found that 82% of college graduates believe their degree was a good investment (cnbc.com, February 2 2020). Suppose a random sample of 100 college graduates is taken. a. What is the expected value and the standard error for the sampling distribution of the sample proportion? b. What is the probability that the sample proportion is less than 0.80? c. What is the probability that the sample proportion is within ± 0.02 of the population proportion?
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
Question number 25
![00
24
2305- Business Statis X
Exercises 7.3
Content
Ohttps://prod.reader-ui.prod.mheducation.com/epub/sn_4893/data-uuid-9e3551b5c8f84659b5e77c87cacabf47
23. A rangOM sampie OT SiZe n= 200 Is taken trom a population with a population proportion p= 0.75.
a. Calculate the expected value and the standard error for the sampling distribution of the sample proportion.
b. What is the probability that the sample proportion is between 0.70 and 0.80?
c. What is the probability that the sample proportion is less than 0.70?
Applications
24. According to new research, 26% of Americans are (almost) always online (bigthink.com, March 20, 2018).
a. What is the probability that fewer than 60 of 200 Americans are always online?
b. What is the probability that more than 150 of 200 Americans are not always online?
25. A recent survey found that 82% of college graduates believe their degree was a good investment (cnbc.com, February 27,
2020). Suppose a random sample of 100 college graduates is taken.
a. What is the expected value and the standard error for the sampling distribution of the sample proportion?
b. What is the probability that the sample proportion is less than 0.80?
c. What is the probability that the sample proportion is within ± 0.02 of the population proportion?
26. One-fifth of Britains are not using the internet (bbc.com, September 9, 2019).
a. What is the expected value and the standard error for the sampling distribution of the sample proportion based on a
sample of 200 Britains. Is it appropriate to use the normal distribution approximation for the sample proportion? Explain.
b. What is the probability that more than 25% of Britains in the sample are not using the internet?
ere to search
近
83°F Mostly cloudy ^ @
Ol]
I14
f11
f12
海
DDI
delete
144
7.
->
backspace
D.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F757ffcd9-4e52-4e78-a504-fb3c0191f35d%2F74096c2c-2653-4c43-ac28-e04e7c30d344%2Fyfbhmls_processed.jpeg&w=3840&q=75)
Transcribed Image Text:00
24
2305- Business Statis X
Exercises 7.3
Content
Ohttps://prod.reader-ui.prod.mheducation.com/epub/sn_4893/data-uuid-9e3551b5c8f84659b5e77c87cacabf47
23. A rangOM sampie OT SiZe n= 200 Is taken trom a population with a population proportion p= 0.75.
a. Calculate the expected value and the standard error for the sampling distribution of the sample proportion.
b. What is the probability that the sample proportion is between 0.70 and 0.80?
c. What is the probability that the sample proportion is less than 0.70?
Applications
24. According to new research, 26% of Americans are (almost) always online (bigthink.com, March 20, 2018).
a. What is the probability that fewer than 60 of 200 Americans are always online?
b. What is the probability that more than 150 of 200 Americans are not always online?
25. A recent survey found that 82% of college graduates believe their degree was a good investment (cnbc.com, February 27,
2020). Suppose a random sample of 100 college graduates is taken.
a. What is the expected value and the standard error for the sampling distribution of the sample proportion?
b. What is the probability that the sample proportion is less than 0.80?
c. What is the probability that the sample proportion is within ± 0.02 of the population proportion?
26. One-fifth of Britains are not using the internet (bbc.com, September 9, 2019).
a. What is the expected value and the standard error for the sampling distribution of the sample proportion based on a
sample of 200 Britains. Is it appropriate to use the normal distribution approximation for the sample proportion? Explain.
b. What is the probability that more than 25% of Britains in the sample are not using the internet?
ere to search
近
83°F Mostly cloudy ^ @
Ol]
I14
f11
f12
海
DDI
delete
144
7.
->
backspace
D.
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 3 steps with 4 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