I. The manager of a crew that installs wood floors has tracked the crew's output over the past several weeks. Each worker works 40 hours per week and earns $17 per hour. Week Crew Size Flooring Installed (sq ft) 1 5 480 2 3 371 3 2 250 WN Nu a. Calculate labor productivity for each of the weeks. b. Calculate labor productivity growth (%) between weeks 1 to 2 and between weeks 2 to 3