Observe that 40% of the ideas are rejected after the "Focus Group" stage. The following table summarizes the time taken per idea by each employee and the number of employees staffing each resource. Everyone works 8 hours per day, i.e., in your calculations, assume 1 day equals 8 hours: Number of employees Time per idea Initial Screening 2 2 hours Mock-up 20 4 days Safety Testing 7 2 days Focus Group 1 3 hours Final Decision 1 4 hours