A researcher varies the amount of caffeine given to three groups of participants (0, 100, and 200 mg) and then observes the anxiety level for each group. The most appropriate statistical test used to determine whether the groups differ is

one way anova

Step-by-step explanation:

The answer to this question is the one way anova or the analysis of variance, the reason is because the One way anova statistical test is used to carry out comparisons between two groups or more in order to check if there is a statistically significant difference in their means. If the researcher wants to check if the groups differ, the one way anova test is the most appropriate test for him  to use.

36/60

36/2=18

60/2=30

18/30

18/3=6

30/3=10

6/10

6/2=3

10/2=5

your final answer would be 3/5 of an

hope this !