Answer:
a. Week Crew Size Yards Installed Productivity
1 4 97 24.25
2 3 69 23
3 4 97 24.25
4 2 50 25
5 3 63 21
6 2 52 26
Note: Productivity = Yards Installed / Crew size
b. Examining the above results, one sees that the productivity is highest (25 and 26) when the crew size was the lowest. Hence, a conclusion could be made that the smaller the crew size, the higher the productivity.