Given the project information in the following table, what is the probability of completing the National Holiday Toy project in $95-$time units? Hint: Use the $=$NORM.S$.$DIST$($z$,$ TRUE$)$ function in Excel to compute the probability. $($Carry at least $2$ decimal places in your task time and variance calculations and at least $3$ decimal places in your z value calculation. Enter your final probability answer to $3$ decimal places.$)$

Acct. ID Description Predecessor Optimistic $($a$)$ Most Likely $($m$)$ Pessimistic $($b$)$ Activity Time $($te$)$ Variance

$[($b $-$ a$)/6]2$ Critical $?$

$1$ Design package None $61224139$ x

$2$ Design product $115192819\mathrm{.}834\mathrm{.}69$ x

$3$ Build package $1471071$

$4$ Secure patent $2242736284$

$5$ Build product $21729473025$ x

$6$ Paint $3,4,547127\mathrm{.}331\mathrm{.}78$ x

$7$ Test market $6131619161$ x