For each problem select the best response a In contrast to a chi square test an ANOVAF test is most appropriate when the A standard deviations are not equal OB standard deviations must be estimated OC data are quantitative OD samples sizes are equal E number of samples is two b The null hypothesis for an ANOVAF test is that OA sample sizes are equal OB population standard deviations are not equal OC sample means are equal OD sample standard deviations are not equal O E population means are equal c The alternative hypothesis for an ANOVAF test is that OA all of the population means are not equal OB none of the population means are equal OC none of the population variances are equal OD all of the population variances are not equal E at least two of the population means are not equal