The Pew Research Center Internet Project conducted a survey of 907 Internet users. This survey provided...

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The Pew Research Center Internet Project conducted a survey of907 Internet users. This survey provided a variety of statistics onthem.
If required, round your answers to four decimal places.
(a) The sample survey showed that 90% of respondents said theInternet has been a good thing for them personally. Develop a 95%confidence interval for the proportion of respondents who say theInternet has been a good thing for them personally.
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(b) The sample survey showed that 67% of Internet users said theInternet has generally strengthened their relationship with familyand friends. Develop a 95% confidence interval for the proportionof respondents who say the Internet has strengthened theirrelationship with family and friends.
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(c) Fifty-six percent of Internet users have seen an online groupcome together to help a person or community solve a problem,whereas only 25% have left an online group because of unpleasantinteraction. Develop a 95% confidence interval for the proportionof Internet users who say online groups have helped solve aproblem.
to
(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 sampleproportion?
The margin of error - Select your answer-increasesdecreasesItem 7 as p gets closer to .50.

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AnswerThe Pew Research Center Internet Project conducted a survey of907 Internet usersa values are givenp bar90100 09 sample proportionz196 z critical value of 95 n907 sample sizeusing the formulaput the See Answer

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(a)	The sample survey showed that 90% of respondents said theInternet has been a good thing for them personally. Develop a 95%confidence interval for the proportion of respondents who say theInternet has been a good thing for them personally.
	to

(b)	The sample survey showed that 67% of Internet users said theInternet has generally strengthened their relationship with familyand friends. Develop a 95% confidence interval for the proportionof respondents who say the Internet has strengthened theirrelationship with family and friends.
	to

(c)	Fifty-six percent of Internet users have seen an online groupcome together to help a person or community solve a problem,whereas only 25% have left an online group because of unpleasantinteraction. Develop a 95% confidence interval for the proportionof Internet users who say online groups have helped solve aproblem.
	to

(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 sampleproportion?
	The margin of error - Select your answer-increasesdecreasesItem 7 as p gets closer to .50.