From the course: Learning Minitab (version Minitab 17)
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Normality test - Minitab Tutorial
From the course: Learning Minitab (version Minitab 17)
Normality test
- [Voiceover] In this movie, I will show you how to run the Normality test using Minitab. Open exercise file, 04-01. Here we have three sets of data - A, B, and C, and we would like to check whether the data is normally distributed or follows a normal distribution. To do that, go to Stat, Basic Statistics, and Normality Test. We have to do each one, in turn. Let's choose A first, and we can run the Anderson-Darling test or if you prefer the Ryan-Joiner or the K-S test. You can choose the others as well. OK, and there you have it. The P-value for the Anderson-Darling test is shown here, 0.751, which means that the data is normal, and the blue dots would reside exactly on the red line if it was perfectly normal. We can do the same for B and C. However, there is a short-cut I'd like to share with you where you can do all three graphs on one graph panel. To do that, you want to do Graph, Probability Plot, Multiple graphs because we're doing all three. Click OK. And which three are we…
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Contents
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Normality test1m 54s
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Compare variances4m 35s
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Compare means using student's t-tests3m 37s
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Compare multiple means using ANOVA3m 10s
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Compare medians with nonparametric tests4m
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Correlation with simple regression2m 29s
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Multiple regression3m 9s
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Challenge: Compare inferences on continuous data25s
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Solution: Compare inferences on continuous data1m 46s
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