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A random sample of 19 registered nurses in a large hospital showed that they worked on...

A random sample of 19 registered nurses in a large hospital showed that they worked on average 44.6 hours per week. The standard deviation of the sample was 2.1. Estimate the mean of the population with 90%confidence. Assume the variable is normally distributed. Round intermediate answers to at least three decimal places. Round your final answers to one decimal place.

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