A research report concludes that there are significant differences among treatments,with "F(2,24)= 8.62,p

Question

A research report concludes that there are significant differences among treatments,with "F(2,24)= 8.62,p < .01." If the same number of participants was used in each of the treatment conditions,then how many individuals were in each treatment?
A)7
B)9
C)10
D)30

Quizplus · Accepted Answer

The degrees of freedom for the F statistic are given as (2, 24), where the first number (2) represents the number of groups minus one, and the second number (24) represents the total number of observations minus the number of groups. If there are 3 groups (since 2+1=3), and the total number of observations minus 3 equals 24, then the total number of observations is 27. Dividing 27 by the 3 groups gives 9 participants per group.

A Research Report Concludes That There Are Significant Differences Among