Consider the process flowchart in Figure $5\mathrm{.}11.$ The estimated waiting time and

processing time for each activity in the process are shown in Table $5\mathrm{.}11.$ All times

are given in minutes.

a$.$ Calculate the average CT for this process.

b$.$ Calculate the CT efficiency.

FIGURE $5\mathrm{.}11$

Flowchart of the business process for Exercise $5\mathrm{.}7.$

TABLE $5\mathrm{.}11$

Time Data for Exercise $5\mathrm{.}7$