When Henry Ford introduced moving assembly lines in his Ford Motor Company plants in 1913, the productivity soared.9 An example of this is the coil line. A coil is an electrical component that makes high voltage for ignition. Before, a skilled worker took approximately 20 minutes to make a coil from start to finish. After an assembly' line was set up and the job was divided into 29 different operations performed by 29 workers, it took only approximately 13 minutes to assemble one coil.
a. Calculate the labour productivity before and after the conversion into an assembly line. I).
b. Calculate the percentage increase in labour productivity due to the assembly line.