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Ross​ Hopkins, president of Hopkins​ Hospitality, has developed the​ tasks, durations, and predecessor relationships in the...

Ross​ Hopkins, president of Hopkins​ Hospitality, has developed the​ tasks, durations, and predecessor relationships in the following table for building new motels.

                                                                                                                                                           

Time

​(weeks​)

Immediate

 Time

​(weeks​)

Immediate

Activity

a

m

b

​Predecessor(s)

Activity

a

m

b

​Predecessor(s)

A

6

8

10

—

G

3

3

5

​C, E

B

2

9

23

A

H

1

1

1

F

C

8

12

18

A

I

7

7

7

F

D

4

7

10

A

J

4

7

14

​D, G, H

E

1

3

4

B

K

1

1

4

​I, J

F

6

8

20

​C, E

A) ) Based on the calculation of the estimated​ times, what is the critical path?

B) The estimated time for the critical path is how many weeks? Round to two decimal places

C) The activity variance of along the critical path is __ weeks. Round to two decimal places

D) Using the standard normal table, what is the probability that hopkins hospital will finish the project in 42 weeks or less __ ? (enter as a probability and round response to three decimal places)

math   Statistics-And-Probability   
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Answer #1

Answer I Activity alb im I mean variance | B LC D 2 1 9 | 23 | 8 | 12 | 18 4 10 17.17 15.33 85 3.33 15.67. 4:33 0.11 1.36 0.4Critical path diagram iso G = 439 8.5 Å The critical path is, A → B E -) F I K - 9+ 17.17+3,33+7+3= 39.50 A → B7 E - F H I K

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