Degrees of Freedom (df) . Numerator: 50% + - Number of groups, minus one. - K - 1. - 3 groups: 3 - 1 = 2 . Denominator: - Total number of observations, minus the number of groups. - N - K. HOMEWORK 10 - 30 participants: 30 - 3 = 27. - Represented: F(2. 27) Below you have the scores for two Studies (Study A and Study B). For each study decide whether you can reject the null hypothesis. Use the p