(All answers were generated using 1,000 trials and native Excel functionality.)
A project has four activities (A, B, C, and D) that must be performed sequentially. The probability distributions for the time required to complete each of the activities are as follows:
Activity | Activity Time (weeks) | Probability |
A | 5 | 0.25 |
6 | 0.35 | |
7 | 0.25 | |
8 | 0.15 | |
B | 3 | 0.20 |
5 | 0.55 | |
7 | 0.25 | |
C | 10 | 0.10 |
12 | 0.25 | |
14 | 0.40 | |
16 | 0.20 | |
18 | 0.05 | |
D | 8 | 0.60 |
10 | 0.40 |
(a) | Construct a spreadsheet simulation model to estimate the average length of the project and the standard deviation of the project length. | ||||
Round your answers to one decimal place. | |||||
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(b) | What is the estimated probability that the project will be completed in 35 weeks or less? | ||||
Round your answer to a whole percentage. | |||||
% |
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