Using the PERT method review the following data for a project that should $be$ scheduled using $CPM$:

IMMEDIATE PREDECESSORS TIMES $(DAYS)$

ACTIVITY $amb$

$A-147$

$B-2613$

$CA114$

$DA234$

$EB246$

$FC,D159$

$GD,E129$

$HF,G369$

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

multiple choice

$B-E-G-H$

$A-D-F-H$

$A-D-G-H$

$A-C-F-H$

$c.$ What $is$ the expected project completion time? $(Round$ your answer $to3$ decimal places.$)$

Project completion time days

$d.$ What $is$ the probability $of$ completing this project within $20$ days? $(Do$ not round intermediate calculations. Round your answer $to4$ decimal places.$)$

Probability