If the alternative hypothesis is accepted in a one-factor within-subjects analysis of variance on ...

If the alternative hypothesis is accepted in a one-factor within-subjects analysis of variance on three levels of the independent variable, then .
 
  a. it may be concluded that the three treatment means were obtained frompopulations with identical means
 b. it may be concluded that the treatment means are not equal to the population means
  c. it may be concluded that the variance of the sample is not equal to the variance of thepopulation
 d. multiple comparison tests are needed to find statistically significant pairwise
  differences of the treatment means