(Answered)-8.45 What proportion of Americans get most of their news from the Internet? According to a poll...

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8.45 What proportion of Americans get most of their news from the Internet? According to a poll conducted by Pew Research Center, 40% get most of their news from the Internet. (Data extracted from “Drill Down,” The New York Times, January 5, 2009, p. B3.) a. To conduct a follow-up study that would provide 95% confidence that the point estimate is correct to within of the population proportion, how large a sample size is required? b. To conduct a follow-up study that would provide 99% confidence that the point estimate is correct to within of the population proportion, how many people need to be sampled? c. To conduct a follow-up study that would provide 95% confidence that the point estimate is correct to within of the population proportion, how large a sample size is required? d. To conduct a follow-up study that would provide 99% confidence that the point estimate is correct to within of the population proportion, how many people need to be sampled? ;0.02 ;0.02 ;0.04 ;0.04 ;$0.25? ;$0.25? ;$0.25? ;5 e. Discuss the effects on sample size requirements of changing the desired confidence level and the acceptable sampling erro

 

Solution ID:10137858 | Question answered on 16-Oct-2016

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