How many hours a week does the average worker work, and at what point, according to the lecture, does productivity generally drop off for workers?
a. Average is 47 hrs a week. Best performance is for 6 hours a day or less.
b. Average is 60 hrs a week. Best performance is for 8 hours a day or less.
c. Average is 40 hrs a week. Best performance is for 8-9 hours a day.