The Pew Research Center Internet Project, conducted on the 25th anniversary of theInternet, 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 theInternet.a. The sample survey showed that 90% of respondents said the Internet has been a goodthing for them personally. Develop a 95% confidence interval for the proportion ofrespondents 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 generallystrengthened their relationship with family and friends. Develop a 95% confidenceinterval for the proportion of respondents who say the Internet has strengthened theirrelationship with family and friends.c. Fifty-six percent of Internet users have seen an online group come together to help aperson or community solve a problem, whereas only 25% have left an online groupbecause of unpleasant interaction. Develop a 95% confidence interval for the proportion of Internet users who say online groups have helped solve a problem
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
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