Twenty years ago, a very famous psychologist specializing in marriage counseling authored a book detailing the way
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Question:
Twenty years ago, a very famous psychologist specializing in marriage counseling authored a book detailing the way in which she believed spouses should communicate. She is now interested in the proportion of all couples who bought her book who stayed together. For a random sample of275
couples who bought her book, she found that 220 of them stayed together. Based on this, compute a 99%
confidence interval for the proportion of all couples who bought her book who stayed together. Then find the lower limit and upper limit of the 99%confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.
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