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2) In 1997, a survey of 880 U. S. households showed that 149 of them used e- mail. Use those sample data to test the

2) In 1997, a survey of 880 U. S. households showed that 149 of them used e- mail. Use those sample data to test the claim that more than 15% of U.S. households use e-mail. Use a 0.05 significance level. Is the conclusion valid today? Why or why not

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