I've gotten the within and null hypothesis correct but I can't seem to get the between and effect size.

D Question 4 3 p Researchers were interested in whether pomegranate juice increased mood during the day. Participants were randomly placed in a control, placebo, or pomegranate juice. Participants rated their happiness on a scale from 0- 10, with O indicating no happiness and 10 indicating extremely happy. Use the 5% significance level. The following parameters are given: Control: M=4.8; $2=1.83; N=6 Placebo: M=5.1; $2=3.36; N=6 Pomegranate Juice: M=8.3; $2=2.45; N=6 Grand Mean: 109.20/18 = 6.07 What is the variance within (S'within)? What is the variance between (S'between)? Do you reject or accept the Null Hypothesis? D Question 5 0.5 pts From the question above, calculate the effect size (R2)