14 - please complete for up to activity K plz

Kele Capet and Trim installs carpet in commercial offices. Petor Kolo has been very concerned when the amount of time it tock to camplete several recent jobs. Some of his workers are ver unreliable. A lst of activities and their optimistie cornpletion time, the most lkely complebon time, and the persimistic completon tme (all in days) for a new contract are given in the following This esercise cortains ony part a a) Based on the activily tene estimates, the expected times and variance for each of the activibes are: (Round your responses fo fup decimal placies.)