BNAD 276 Lecture 5: Chapter 13 Analysis of Variance
10 Feb 2017
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Boston x 1 = s1 = . 79 n1 = 5 x 2 = s2 = . 40 n2 = 8 x 3 = s3 = . 96 n3 = 6. Chicago x 4 = s4 = . 62 n4 = 5. Environmental and economic concerns have led to an upswing in the use of public transportation. Research analyst sean cox looked at study results form a boston globe article that claimed commuters there topped the nation in cost savings from public transportation. He wants to know if the average savings significantly differ among these cities. Analysis of variance (anova) is used to determine if there are differences among three or more populations. One-way anova compares population means based on one categorical variable. We utilize a completely randomized design, comparing sample means computed for each treatment to test whether the population means differ.
