A sample of 357 subscribers to Wired magazine shows the mean time spent using the Internet...

A sample of 357 subscribers to Wired magazine shows the mean time spent using the Internet is 14.7 hours per week, with a sample standard deviation of 7.9 hours.

Find the 80% confidence interval for the mean time Wired subscribers spend on the Internet. (Round the final answers to 2 decimal places.)

The confidence interval is between and .

Solutions

Expert Solution

14.59 and 14.81

orchestra answered 1 year ago

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