The Pew Research Center Internet Project conducted a survey of 757 Internet users. This survey provided a variety of statistics on them.

If required, round your answers to four decimal places.

(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.to(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.to(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.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 sample proportion?The margin of error- Select your answer -

increases

decreases

Item 7

aspgets closer to .50.