How to Perform a Normality Test on Minitab

Thứ bảy - 27/04/2024 01:10
Before you start performing any statistical analysis on the given data, it is important to identify if the data follows normal distribution. If the given data follows normal distribution, you can make use of parametric tests (test of...
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Before you start performing any statistical analysis on the given data, it is important to identify if the data follows normal distribution. If the given data follows normal distribution, you can make use of parametric tests (test of means) for further levels of statistical analysis. If the given data does not follow normal distribution, you would then need to make use of non-parametric tests (test of medians). As we all know, parametric tests are more powerful than non-parametric tests. Hence, checking the normality of the given data becomes all the more important.

Steps

  1. Step 1 Write the hypothesis.
    A good way to perform any statistical analysis is to begin by writing the hypothesis. For normality test, the null hypothesis is “Data follows a normal distribution” and alternate hypothesis is “Data does not follow a normal distribution”.
  2. Step 7 Select data.
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