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Overtime Hours Worked A random sample of12 registered nurses in a large hospital showed that they worked on average44.3 hours perweek.The standard deviation of the

Overtime Hours WorkedA random sample of12

registered nurses in a large hospital showed that they worked on average44.3

hours perweek.The standard deviation of the sample was2.2

.Estimate the mean of the population with99

%

confidence.Assume the variable is normallydistributed.Round intermediate answers to at least three decimalplaces.Round your final answers to one decimalplace.

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