{"id":111597,"date":"2023-07-11T10:21:00","date_gmt":"2023-07-11T04:51:00","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=111597"},"modified":"2023-07-11T10:22:03","modified_gmt":"2023-07-11T04:52:03","slug":"how-to-perform-a-normality-test-on-minitab","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/how-to-perform-a-normality-test-on-minitab\/","title":{"rendered":"How to Perform a Normality Test on Minitab?"},"content":{"rendered":"

It’s crucial to determine if the provided data follows a normal distribution before doing any statistical study on it. You can utilize parametric tests (test of means) for further statistical analysis if the provided data has a normal distribution. <\/span>You would therefore need to apply non-parametric tests if the presented data did not have a normal distribution (test of medians). Parametric tests are more effective than non-parametric tests, as is common knowledge. Checking the normalcy of the provided data becomes much more crucial as a result.<\/span><\/p>\n

1. Make the hypothesis.<\/h4>\n

Writing the hypothesis at the outset of each statistical investigation is a wise strategy. “Data follows a normal distribution” is the null hypothesis for the normality test, in contrast to the alternative viewpoint.<\/span><\/p>\n

\"make<\/a><\/p>\n

2. Decide on the data.<\/h4>\n

The spreadsheet’s data should be copied if you want to perform the normality test on it.<\/span><\/p>\n

3. The data is then copied and pasted into the Minitab spreadsheet.<\/h4>\n

Copy and paste the data into the Minitab spreadsheet after launching Minitab.<\/span><\/p>\n

4. Press on “Stat.”<\/h4>\n

The data entry cells for the Minitab spreadsheet are displayed. Then click “stat” in the menu bar and choose a Normality test<\/b> submenu in Basic Statistics.<\/b><\/span><\/span><\/p>\n

5. Choose data.<\/h4>\n

On the screen, a little window with the title “Normality Test” will show up. Choose something useful by clicking inside the white box, then click “Select.”\u00a0<\/span><\/p>\n

Be careful that the name of the chosen data will appear in the “Variable” tab.\u00a0<\/span><\/p>\n

Also, keep in mind that the box next to “Tests for Normalcy” is already ticked for “Anderson Darling.” The Anderson-Darling normality test is the most popular one. As a result, “AndersonDarling” is the preselected option for Tests for Normality in Minitab.<\/span><\/p>\n

6. Select “Ok.”<\/h4>\n

7. Understand the p-value displayed in the Normal Probability Plot.<\/h4>\n

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