The General Social Survey is a survey of opinions and lifestyles of U.S. adults, conducted by the National Opinion Research Center at the University of Chicago. A sample of 81 people aged 18-to-22 reported the number of hours they spent on the Internet in an average week. The sample mean was 8.20 hours, with a sample standard deviation of 9.84 hours. a. Construct and interpret a 95% confidence interval for the mean number of hours per week spent on the Internet by people aged 18-to-22 in the United States. b. Construct and interpret a 99% confidence interval for the mean number of hours per week spent on the Internet by people aged 18-to-22 in the United States.
The General Social Survey is a survey of opinions and lifestyles of U.S. adults, conducted by the National Opinion Research Center at the University of Chicago. A sample of 81 people aged 18-to-22 reported the number of hours they spent on the Internet in an average week. The sample
a. Construct and interpret a 95% confidence interval for the mean number of hours per week spent on the Internet by people aged 18-to-22 in the United States.
b. Construct and interpret a 99% confidence interval for the mean number of hours per week spent on the Internet by people aged 18-to-22 in the United States.
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