The product development group at Landon Corporation has been working on a new computer software product that has the potential to capture a large market share. Through outside sources, Landon's management learned that a competitor is working to introduce a similar product. As a result, Landon's top management increased its pressure on the product development group. The group's leader turned to PERT/CPM as an aid to scheduling the activities remaining before the new product can be brought to the market. he activity time estimates (in weeks) are listed in the following table. Activity Optimistic Most Probable Pessimistic A 3 4 5 B 3 3.5 7 C 4 5 6 D 2 3 4 E 5 8 11 F 8.5 9.5 13.5 G 4.5 6 7.5 H 6 7 14 I 2 2.5 6 J 4 5 6 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 23 weeks? (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 Corporation may introduce the new product within 29 weeks? (Round your answer to four decimal places.)

Practical Management Science
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Author:WINSTON, Wayne L.
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The product development group at Landon Corporation has been working on a new computer software product that has the potential to capture a large market share. Through outside sources, Landon's management learned that a competitor is working to introduce a similar product. As a result, Landon's top management increased its pressure on the product development group. The group's leader turned to PERT/CPM as an aid to scheduling the activities remaining before the new product can be brought to the market.

he activity time estimates (in weeks) are listed in the following table.
Activity Optimistic Most Probable Pessimistic
A 3 4 5
B 3 3.5 7
C 4 5 6
D 2 3 4
E 5 8 11
F 8.5 9.5 13.5
G 4.5 6 7.5
H 6 7 14
I 2 2.5 6
J 4 5 6

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 23 weeks? (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 Corporation may introduce the new product within 29 weeks? (Round your answer to four decimal places.)

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