Seventy two percent of American adults have read a book within the past year (pewresearch.org, December 3,
Question:
Seventy two percent of American adults have read a book within the past year (pewresearch.org, December 3, 2014). Assume this is the true population proportion and that you plan to take a sample survey of 540 American adults to further investigate their behavior.
a. Show the sampling distribution of p̅, the proportion of your sample respondents who have read a book in the past year.
b. What is the probability that your survey will provide a sample proportion within ± .03 of the population proportion?
c. What is the probability that your survey will provide a sample proportion within ± .015 of the population proportion?
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Step by Step Answer:
Modern Business Statistics With Microsoft Excel
ISBN: 9781337115186
6th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran