Data Were Collected on the Weights for the Entire Roster

Short Answer

Data were collected on the weights for the entire roster of the 2005 Cal Poly football team. Individuals were classified as playing offense, defense, or special teams. Suppose you want to consider these data as representative of all collegiate football players and want to compare the average weight of the players in these three groups.
-Based on this output, how many players were on the Cal Poly team? Explain (briefly) how you know.