A survey was conducted of 665 consumer magazines on the practices of their websites. Of these, 273 magazines reported that

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A survey was conducted of 665 consumer magazines on the practices of their websites. Of these, 273 magazines reported that online-only content is copy-edited as rigorously as print content; 379 reported that online-only content is fact-checked as rigorously as print content. (Data extracted from S. Clifford, "Columbia Survey Finds a Slack Editing Process of Magazine Web Sites," The New York Times, March 1, 2010, p. B6.) Suppose that a sample of 500 newspapers revealed that 252 reported that online-only content is copy-edited as rigorously as print content and 296 reported that online-only content is fact-checked as rigorously as print content.
a. At the 0.05 level of significance, is there evidence of a difference between consumer magazines and newspapers in the proportion of online-only content that is copy-edited as rigorously as print content?
b. Find the p-value in (a) and interpret its meaning.
c. At the 0.05 level of significance, is there evidence of a difference between consumer magazines and newspapers in the proportion of online-only content that is factchecked as rigorously as print content?

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Related Book For  answer-question

Basic Business Statistics Concepts And Applications

ISBN: 9780132168380

12th Edition

Authors: Mark L. Berenson, David M. Levine, Timothy C. Krehbiel

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Question Posted: March 29, 2016 06:35:10