Scenario: A sports analytic team is interested in the effect of supporters singing on the number of goals scored by a soccer team. They took 84 supporters of a soccer team and asked them to attend three home games. During one game, they were instructed to sing positive songs in support of their team (positive). During the second game at which they were instructed to sing negative songs towards the opposition team (negative) and during the third game they were instructed to sit quietly (neutral). The SPSS output tables are given below.