Time $($days$)$

Immediate

Activity

a

m

b

$$Predecessor$($s$)$

A

$3$

$6$

$8$

long dash

B

$4$

$5$

$6$

long dash

C

$1$

$2$

$3$

long dash

D

$6$

$7$

$8$

C

E

$2$

$4$

$6$

$$B$,$ D

F

$1$

$2$

$3$

$$A$,$ E

G

$5$

$10$

$15$

$$A$,$ E

H

$10$

$11$

$12$

F

I

$3$

$5$

$7$

G

J

$13$

$15$

$17$

C

K

$5$

$9$

$13$

$$H$,$ I

This exercise contains only part a$.$

Part $2$

$$a$)$ Based on the activity time$$ estimates, the expected times and variance for each of the activities$$ are:

$($Round your responses to two decimal$$ places.$)$

Part $3$Part $4$Part $5$Part $6$Part $7$Part $8$Part $9$Part $10$Part $11$Part $12$

Activity

Expected Time

Variance

A

$$

$2$

$$

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B

$$

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C

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D

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E

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F

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G

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H

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I

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J

$$

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K

$$

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