12.2 What’s wrong? For each of the following, explain what is wrong and why.

  1. (a) In rejecting the null hypothesis, one can conclude that all the means are different from one another.

  2. (b) A one-way ANOVA can be used only when there are two means to be compared.

  3. (c) The ANOVA F statistic will be large when the within-group variation is much larger than the between-group variation.

  4. (d) ANOVA is insensitive to outliers and extreme departures from Normality.