It has been estimated that the mean time required to complete a project is 20 weeks and the variance of project completion time is 9 weeks.So there is a 50% chance that the project can be completed in

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The mean time to complete the project is 20 weeks, which implies that there is a 50% chance the project will be completed in 20 weeks, as the mean represents the midpoint of a normal distribution.

It Has Been Estimated That the Mean Time Required to Complete