Chapter $13$: Project Managen

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clinics, so that the physician's role in patient care can be proactive across the care continuum. Activities and their optimistic, most likely, and pessimistic activity durations in hours shown in Table EX $13\mathrm{.}14.$

Table EX $13\mathrm{.}14$

$\backslash$table$[[$Activity$,$Activity Description,Predecessor Activity,Optimistic,Most Likely,Pessimistic$],[$A$,$Exploratory Phase,$-,65,157\mathrm{.}5,250],[$B$,$Maestro Modifications,A$,590,940,1,290],[$C$,$Dialysis Clinic Interface,A$,690,990,1,290],[$D$,$HL$7$ Lab Order Interface,A$,390,590,790],[$E$,$Scanned$-$In Documents,A$,190,390,590],[$F$,$Standard Phrase Code Set,A$,8,29,50],[$G$,$Family History Module,A$,590,740,890],[$H$,$Outlook Integration,A$,1,090,1,690,2,290],[$I$,$Formulary Import and Check,A$,390,590,790],[$J$,$Scheduler Module,A$,190,390,590],[$K$,$Physician Encounter Sheet,B$,2,090,3,690,5,290],[$L$,$PDA Module,K$,1,090,3,190,5,290],[$M$,$Drug$-$Drug and Drug$-$Allergy Module I,$390,590,790,],[$N$,$Coordination of Benefits,J$,190,340,490],[$O$,$Referral Tracking Module,N$,390,590,790],[$P$,$User Training Plan,C$,$ D$,$ E$,$ F$,$ G$,$ H$,$ L$,$ M$,$ O$,40,50,60],[$Q$,$Marketing Plan,L$,$ P$,60,150,240]]$

a$.$ Calculate the mean duration for each activity.

b$.$ Calculate the variance for each activity time.

c$.$ Identify the mean and the standard deviation for each path.

d$.$ Calculate project completion probability for $8,200,9,200,$ and $9,500$ hours.

$13\mathrm{.}15$ A hospital is planning to add a $$60$ million patient tower. To support both the existing hospital facility and the new patient tower, an existing energy plant will be expanded and upgraded. Equipment upgrades include a new generator, liquid oxygen tanks, cooling towers, boilers, and a chiller system to ensure adequate electricity, heating, air$-$conditioning, h