George calculates the F-ratio for a one-way ANOVA comparing the means of three groups: Group A (M = 4.12), Group B (M = 7.37) and Group C (M = 8.92). If he makes the decision to reject the null hypothesis, what is the most specific and appropriate conclusion he can make?
A) The groups are all different from each other.
B) The groups are not all equal to each other.
C) Group A ≠ Group B ≠ Group C
D) Group A

Question

George calculates the F-ratio for a one-way ANOVA comparing the means of three groups: Group A (M = 4.12), Group B (M = 7.37) and Group C (M = 8.92). If he makes the decision to reject the null hypothesis, what is the most specific and appropriate conclusion he can make?
A) The groups are all different from each other.
B) The groups are not all equal to each other.
C) Group A ≠ Group B ≠ Group C
D) Group A < Group B < Group C

Quizplus · Accepted Answer

Rejecting the null hypothesis in a one-way ANOVA test indicates that at least one group mean is different from the others, but it does not specify which groups are different or the direction of the differences.

George Calculates the F-Ratio for a One-Way ANOVA Comparing the Means