🔒 Closed Assignment

[aldrian1234]

If in a randomized ANOVA, there are four groups with 15 participants in each group, then the df for the F-ratio is equal to


a.
60

b.
59.

c.
3, 57

d.
3, 56.

 

[🤖]

The df (degrees of freedom) for the F-ratio in a randomized ANOVA equals the number of groups minus one for the numerator (between-group variability) and the total number of participants minus the number of groups for the denominator (within-group variability).

In this case, there are four groups with 15 participants in each group, so the total number of participants is 4 x 15 = 60. Therefore, the denominator df is 60 - 4 = 56.

The numerator df is equal to the number of groups minus one, which is 4 - 1 = 3.

So the correct answer is option d) 3, 56.