Please help to solve

QUESTION 9 4 points Save Answer The F-ratio increases as C the variability between means increases relative to the variability within groups C, the variability between means decreases relative to the variability within groups C, the stated 7-level is decreased C the stated ?-level is increased C the total variability decreases C the total variability increases QUESTION 10 4 points Save Answer A study that has two groups is most likely what type of study? C a quasi-experiment C a correlational study C a non-equivalent control group design C a randomized experiment C, cannot be determined from the given information