1. Participants were assigned to one of three groups in order to study short-term memory with three different types of items: words, non-words, and numbers. Participants were shown a list of items that match their group type, and then were given a test to see how many items they could remember. The data is listed below. The researcher wants to know if there is a significant difference among any of the group means.

2. Words	Non-words	Numbers
   8	5	6
   9	4	6
   7	5	5
   10	6	7
   9	3	5
   8	5	6
   7	4	7
   7	3	7
   >=8.13	>=4.38	>=6.13