c. What is the expected project completion time? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Answer is complete but not entirely correct. Project completion time days 14.66

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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My only question is for part c, everyone has gotten 14.66 but in the photo it is clearly incorrect so am I not sure as to what it could be, pls help thanks. 

The following represents a project that should be scheduled using CPM:
TIMES (DAYS)
IMMEDIATE
АСTIVITY
PREDECESSORS
a
m
A
3
B
2
3
A
2
3
A
3
B
3
4
11
C, D
D, E
F, G
3
4
G
1
4
6.
H
2
4
b. What is the critical path?
A-D-F-H
B-E-G-H
A-D-G-H
O A-C-F-H
Transcribed Image Text:The following represents a project that should be scheduled using CPM: TIMES (DAYS) IMMEDIATE АСTIVITY PREDECESSORS a m A 3 B 2 3 A 2 3 A 3 B 3 4 11 C, D D, E F, G 3 4 G 1 4 6. H 2 4 b. What is the critical path? A-D-F-H B-E-G-H A-D-G-H O A-C-F-H
c. What is the expected project completion time? (Do not round intermediate calculations. Round your answer to 2 decimal places.)
8 Answer is complete but not entirely correct.
Project completion time
14.66 8 days
d. What is the probability of completing this project within 16 days? (Use Excel's NORM.S.DIST(() function to find the correct
probability for your computed Z-value. Do not round intermediate calculations. Round "z" value to 2 decimal places and final
answer to 4 decimal places.)
Answer is complete and correct.
Probability
0.7852
Transcribed Image Text:c. What is the expected project completion time? (Do not round intermediate calculations. Round your answer to 2 decimal places.) 8 Answer is complete but not entirely correct. Project completion time 14.66 8 days d. What is the probability of completing this project within 16 days? (Use Excel's NORM.S.DIST(() function to find the correct probability for your computed Z-value. Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to 4 decimal places.) Answer is complete and correct. Probability 0.7852
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