If sick-leave time X used by employees of a company in one
Chapter 24, Problem 24.8(choose chapter or problem)
If sick-leave time X used by employees of a company in one month is (very roughly) normal with mean 1000 hours and standard deviation 100 hours. how much time t should be budgeted for sick leave during the next month if t is to be exceeded with probability of only 20o/c?
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