For an independent-measures experiment comparing two treatment conditions with a sample of n = 10 in each treatment,what are the correct df values for the F-ratio?
A)1, 18
B)1, 19
C)2, 18
D)2, 19

Question

For an independent-measures experiment comparing two treatment conditions with a sample of n = 10 in each treatment,what are the correct df values for the F-ratio?​
A)​1, 18
B)​1, 19
C)​2, 18
D)​2, 19

Quizplus · Accepted Answer

The degrees of freedom for the numerator (between groups) is calculated as the number of groups minus one, which is 2 - 1 = 1. The degrees of freedom for the denominator (within groups) is calculated as the total number of observations minus the number of groups, which is 20 - 2 = 18. Therefore, the correct df values for the F-ratio are 1 for between groups and 18 for within groups.

For an Independent-Measures Experiment Comparing Two Treatment Conditions with a Sample