A company developed a drug to reduce hunger. To test it, 3 rat samples of n = 10 in each were taken ...

A company developed a drug to reduce hunger. To test it, 3 rat samples of n = 10 in each were taken. The first sample got the drug every day, the second sample got the drug once a week, and the third sample got nothing. The dependent variable was each rat's food amount eaten over 1 month. The data was analyzed by ANOVA and reported in a summary table. How to fill in the table below? It is suggested to start with the df column.
 

Source                            SS               df            MS                 F = 7.50
Between treatments       ___             ___          15
Within treatments           ___             ___          ___
Total                               ___             ___