11 relaxing after work. the 2010 general social survey asked the question: "after an average work day, about how many hours do you have to relax or pursue activities that you enjoy?" to a random sample of 1,155 americans.41 a 95% confidence interval for the mean number of hours spent relaxing or pursuing activities they enjoy was (1.38, 1.92). (a) interpret this interval in context of the d

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MarbleMonkey9906 MarbleMonkey9906

10-10-2017
Mathematics

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11 relaxing after work. the 2010 general social survey asked the question: "after an average work day, about how many hours do you have to relax or pursue activities that you enjoy?" to a random sample of 1,155 americans.41 a 95% confidence interval for the mean number of hours spent relaxing or pursuing activities they enjoy was (1.38, 1.92). (a) interpret this interval in context of the d

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nguythid nguythid · Answer 1 · 2017-10-20T11:48:02+02:00

A confidence interval tells us how many percents we are confident about the range of a parameter. In this problem, a 95% confidence interval for the mean number of hours spent relaxing or pursuing activities they enjoy was (1.38, 1.92). That means we're 95% confident that the Americans spend from 1.38 hours to 1.92 hours per day on average relaxing or pursuing activities they enjoy. In other words, 95% of the samples of the same size would have a mean number of hours relaxing or pursuing activities they enjoy between 1.38 to 1.92.