Question: Suppose that the time to complete a project is the sum of several independent operations. If the means and standard deviations of the independent operations

Suppose that the time to complete a project is the sum of several independent operations. If the means and standard deviations of the independent operations are known, determine the mean and standard deviation of the project completion time. If the operations are not independent, what effect will this have on the mean and standard deviation of completion time?

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