A project team estimates that a work package is most likely to have a duration of $9$ days. However, under the worst possible conditions $($pessimistic$),$ it will take $15$ days, and if conditions are ideal $($optimistic$),$ it will take only $3$ days. Using the PERT three$-$point estimation method, what is the expected time for this work package?

Group of answer choices

$18$ days

$14$ days

$9$ days

$26\mathrm{.}67$ days

None of the aboveA project team estimates that a work package is most likely to have a duration of $9$ days. However, under the worst possible conditions $($pessimistic$),$ it will take $15$ days, and if conditions are ideal $($optimistic$),$ it will take only $3$ days. Using the PERT three$-$point estimation method, what is the expected time for this work package?

Group of answer choices

$18$ days

$14$ days

$9$ days

$26\mathrm{.}67$ days

None of the above