Answered step by step
Verified Expert Solution

Q: The Pew Research Center Internet Project, conducted on the 25th anniversary of the Internet, involved a survey of 857 Internet users (Pew Research Center website,

The Pew Research Center Internet Project, conducted on the 25th anniversary of the Internet, involved a survey of 857 Internet users (Pew Research Center website, April 1, 2014). It provided a variety of statistics on Internet users. For instance, in 2014, 87% of American adults were Internet users. In 1995 only 14% of American adults used the Internet.
a. The sample survey showed that 90% of respondents said the Internet has been a good thing for them personally. Develop a 95% confidence interval for the proportion of respondents who say the Internet has been a good thing for them personally.
b. The sample survey showed that 67% of Internet users said the Internet has generally strengthened their relationship with family and friends. Develop a 95% confidence interval for the proportion of respondents who say the Internet has strengthened their relationship with family and friends.
c. Fifty-six percent of Internet users have seen an online group come together to help a person or community solve a problem, whereas only 25% have left an online group because of unpleasant interaction. Develop a 95% confidence interval for the proportion of Internet users who say online groups have helped solve a problem.
d. Compare the margin of error for the interval estimates in parts (a), (b), and (c). How is the margin of error related to the sample proportion?

Step by Step Solution

3.47 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Link Copied!

Step: 1

a Margin of Error 95 Confidence Interval 90 0201 or 8799 ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get a step-by-step solution from a verified subject matter expert – not AI-generated answers

Step: 2Unlock detailed examples and clear explanations to master concepts

blur-text-image_2

Step: 3Unlock to practice, ask and learn with real-world examples

blur-text-image_3

Document Format ( 1 attachment)

Word file Icon

1131-M-S-H-T(5584).docx

120 KBs Word File

See step-by-step solutions with expert insights and AI powered tools for academic success

  • tick Icon Access 30 Million+ textbook solutions.
  • tick Icon Ask unlimited questions from AI Tutors.
  • tick Icon 24/7 Expert guidance tailored to your subject.
  • tick Icon Order free textbooks.

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Statistics For Business & Economics

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran

13th Edition

1305585313, 978-1305585317

More Books
flashcard-anime

Study Smart with AI Flashcards

Access a vast library of flashcards, create your own, and experience a game-changing transformation in how you learn and retain knowledge

Explore Flashcards

Students Have Also Explored These Related Statistics Questions!

Q:

Explain how multicasting works.

Answered: 3 weeks ago