Problem $4-8$

The following represents a project that should be scheduled using CPM: Use Appendix G$.$

$$

TIMES $($DAYS$)$

ACTIVITYIMMEDIATE

PREDECESSORSambA$147$B$3510$C$$A$258$D$$A$4611$E$$B$123$F$$C$,$ D$357$G$$D$,$ E$126$H$$F$,$ G$256$

b$.$What is the critical path?$$

multiple choice

A$-$D$-$G$-$H

A$-$D$-$F$-$H Correct

A$-$C$-$F$-$H

B$-$E$-$G$-$H

c$.$

What is the expected project completion time? $($Do not round intermediate calculations. Round your answer to $3$ decimal places.$)$

$$Project completion time$20\mathrm{.}167$ Numeric ResponseEdit Unavailable. $20\mathrm{.}167$ correct.days $$

d$.$

What is the probability of completing this project within $22$ days?