The correct answer is not alsplayed for Written Response type questions.

Question $20$

Given the project information for a product development project of a Dermatology Scanning Table:

$\backslash$table$[[$Activity ID$,$Description,Predecessor,Optim.$($a$),$Most Likely $($m$),$Pess. $($b$),],[1,$Design package,None,$6,12,,24],[2,$Design product,$1,16,19,,28],[3,$Build package,$1,4,7,,10],[4,$Secure Patent,$2,24,27,,36],[5,$Build product,$2,17,29,,47],[6,$Paint,$3,4,5,4,7,,10],[7,$Test market,$6,13,16,,19]]$

Complete the columns below.

$\backslash$table$[[$Activity ID$,$Optim.$($a$),,$Pess. $($b$),t_e,$Critical$],[,,$Path$],[1,6,12,24,,],[2,16,19,28,,],[3,4,7,10,,],[4,24,27,36,,],[5,17,29,47,,],[6,4,7,10,,],[7,13,16,19,,]]$