Answer: 1.02 unit per hour
Explanation: total unit of devices for homeland security is 2200 units
Total labourer = 27 people
Total hour for two weeks = 40 × 2 = 80
Productivity per hour = devices number/total hour 2200/ 80 = 27.5
productivity for the Homeland Security contract in units produced per labor hour = 27.5/27 = 1.0185 = 1.02