During the 2010 Super Bowl game the Snickers candy bar campaign was voted the be

During the 2010 Super Bowl game the Snickers candy bar campaign was voted the best ad among men and women 18 and older and youth 18 or younger. The ad featured a neighborhood football game in which one of the players who has dwindling energy is tackled again and again. His teammates tell him You play like Betty White! The 80-year-old actress and comedian appear in the ad as the football player being tackled. If you were the owner of the ADBOWL website how would you draw the sample to measure the best ad that aired during the Super Bowl game among the three groups of interest?