From the course: Learning Minitab (version Minitab 17)

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Solution: Compare inferences on continuous data

Solution: Compare inferences on continuous data - Minitab Tutorial

From the course: Learning Minitab (version Minitab 17)

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Solution: Compare inferences on continuous data

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(tinkling music) - [Voiceover] To compare these home prices, we could possibly run a Anova, but before we can do that, we have to check for normality. So, Graph, Probability Plot, Multiple, select the three towns, and we see the data is not normal. Besides, home prices are not normal anyway, so let's go to the nonparametric tests. In this case it would be the Kruskal Wallis, because we have three groups. Stat, Nonparametrics, Kruskal Wallis. Given the layout of this dialog, we have to use stacked data, but we have stacked data in Column five and six. As the comments indicated here, so choose Prices, factor is Location, okay. Let's pull this down, and we see that the result is significant, with a P value of 0.000, therefore the home prices are different. The second question was, which town's the cheapest? Well, you can do confidence intervals on the median, and to do that we go to Stat, Nonparametrics, choose a 1-Sample Wilcoxon, but we'll use the confidence interval feature there…

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