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Mathematics, 20.04.2020 19:10 bobtothemaxthe1st

In a sample of 50 households, the mean number of hours spent on social networking sites during the month
of January was 45 hours. In a much larger study, the standard deviation was determined to be 8 hours.
Assume the population standard deviation is the same. What is the 95% confidence interval for the mean
hours devoted to social networking in January?

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