Question: please solve by hand not using excel 22. (5 pts) Task A, B, C must be completed in series to complete a project. The three

please solve by hand not using excel

22. (5 pts) Task A, B, C must be completed in series to complete a project. The three times estimates (a, m, and b) for each task are listed in the following table a Task A B 8 5 18 m 11 11 21 b 20 17 24 (a) Calculate the expected time (and standard deviation o for each task (1.5 pts) (b) Calculate the expected time 1 and standard deviation o, for the complete project (1.5 pts) (c) What is the probability of the project being completed in 38 weeks? (2 pts) (For your convenience, the z-Table is attached at the end of this test)

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