In 2003, the accreditation council for graduate medical education (acgme) implemented new rules limiting work hours for all residents. a key component of these rules is that residents should work no more than 80 hours per week. the following is the number of weekly hours worked in 2016 by a sample of residents at the tidelands medical center. 78 85 82 79 77 82 81 82 81 81 82 78 what is the point estimate of the population mean?