At a high school debate tournament half of the teams were asked to wear suits and ties and the rest were asked to wear jeans and t shirts The results are given in the table below At the 0 05 significance level test the hypothesis that the proportion of wins is the same for teams wearing suits as for teams wearing jeans Win Loss Suit 22 28 T shirt 28 22 Select the correct degrees of freedom Odf 4 Odf 1 Odf 2 16