$($b$)$ Based solely on the critical path, what is the probability that the project will be completed so that Landon Corporation may introduce the new product within $27$ weeks? $($You appropriate technology to answer this question. Round your answer to four decimal places.$)$

Based solely on the critical path, what is the probability that the project will be completed so that Landon Corooration mav introduco the pow preduct withiN $27$ weeks