Steve is a marketing intern at Home-Style Cookies. One of Steve's responsibilities is to set up a booth at assigned grocery stores to hand out cookie samples to increase sales. Last Monday, Steve handed out 800 samples in 8 hours. On Friday, Steve was training a new intern, Mike, and together they handed out 800 samples in 5 hours.

Calculate the labor productivity for each day; provide your answers.

For which day was the labor productivity higher?

What are some possible reasons for the productivity differences?