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Among the 232 GSS2008 respondents aged 66 and above, the mean number of times in the past year they visited a public library was 8.13

Among the 232 GSS2008 respondents aged 66 and above, the mean number of times in the past year they visited a public library was 8.13 with a standard deviation of 23. Based on this information calculate a 95% confidence interval and fully explain the results.

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