7. CrayComputecorporationdevelopingnewsuperomputefhetablebelowiststheproject activitiesormaandcrashimesandnormaandcrashcosts Immediate Time week's Cost($1,000's Activity Description Predecessor(s) Normal Crash Normal Crash Design 3 200 200 Evaluatequipment 80 100 Write methods report 50 80 Buildprototype 125 170 Write equipment report 20 30 Test prototype 140 160 Write final report 45 105 a. DrawanactivityetworkdiagramforthisprojectUsinghenormaactivityimesdeterminthe earlystartearlyfinishlatestartandlatefinishtimeforeachactivityRecordhesevalueinthe diagram b. Baseonthenormaactivityimeandcosts: (i) Howlongwillittaketocomplettheproject (ii) Whatsthetotaprojectost (iii) Identifyhecriticapaths)