When your boss opened her first bakery/donut shop in 1985 the mean work week for bakers in this type of start-up company was believed to be about 60 hours. When she hires a new baker, the new employee hopes that when it is time for him to open his own shop the work week will be shorter. Your boss asked you to interview 10 friends in bakery type start-ups for the lengths of their mean work weeks. Based on the results that follow, should she count on the mean work week to be shorter than 60 hours?

Interview results Data (length of mean work week): 70, 45, 55, 60, 65, 55, 55, 60, 50, 55.

Explain your answer