Grand Strand Family Medical Center is specifically set up to treat minor ...

      Grand Strand Family Medical Center is specifically set   up to treat minor medical emergencies for visitors to the Myrtle Beach area.   There are two facilities, one in Little River Area and the other in Murrells   Inlet. The Quality Assurance Department wishes to compare the mean waiting   time for patients at the two locations. Samples of the waiting times,   reported in minutes, follow:       Location                                       Waiting   time   Little   River    31.73   28.77   29.53   22.08   29.47   18.60   32.94   25.18   29.82   26.49   Murrells   Inlet     22.93   23.92   26.92   27.20   26.44   25.62   30.61   29.44   23.09   23.10   26.69 22.31       Assume   the population standard deviation are not the same. At the .05 significance   level, is there a difference in mean waiting time?