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Statistics / Elementary Statistics 12 / Chapter 8.5 / Problem 3RE

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

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Risky Behavior In a USA Today poll of 737 respondents, 92%

Chapter 8, Problem 3RE

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Problem 3RE

Risky Behavior In a USA Today poll of 737 respondents, 92% said that they do not open unfamiliar e-mail and instant-message links. Use a 0.01 significance level to test the claim that more than 75% of us do not open unfamiliar e-mail and instant-message links. How is the validity of the results affected by the knowledge that USA Today posted a question on its Web site, and 737 people chose to respond?

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QUESTION:

Problem 3RE

Risky Behavior In a USA Today poll of 737 respondents, 92% said that they do not open unfamiliar e-mail and instant-message links. Use a 0.01 significance level to test the claim that more than 75% of us do not open unfamiliar e-mail and instant-message links. How is the validity of the results affected by the knowledge that USA Today posted a question on its Web site, and 737 people chose to respond?

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