SOCI 328 Lecture Notes - Lecture 16: Telemedia, Interval Ratio
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One way analysis of variance(one way anova) = test of significance for comparison of two or more means. Series of mean scores by categories of categorical variable in population: ho: population means = same, ha: at least two of means are different(or, not all of means are the same) Note: if there are three categories for the categorical variable(and hense three groups of cases and three means being compared to one another), then several different possibilities will satisfy alternative hypothesis. Assumption 1: population distributions on interval ratio variable for groups are normal: guiding rule regarding normality assumption: one way anova = appropriate when sample size for each group is large(i. e >50)
