The null hypothesis for a one-way within-subjects ANOVA with three groups stated in terms of differences is 1 = 2 = 3. Suppose a researcher compares differences in scores between three groups and finds that the group means are all the same: M1 = M2 = M3. This is exactly what is stated in the null hypothesis for three group means in the population. In this example, when the findings are exactly the same as stated in the null hypothesis, what is the value of the F statistic?

a. 0

b. 1

c. undefined