sample statistics are shown for random samples of pets, and how often they are fed treats per week. cats dogs number in sample 53 92 average treats per week 12.4 17.5 standard deviation 3.4 treats 2.7 treats 1. is there a difference in the average number of treats cats and dogs get per week? use phantoms. 2. what is the difference in the average number of treats cats and dogs get per week? use panic.