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What does it do?  | Used to find the mathematical function needed to translate a continuous but nonnormal distribution into a normal distribution. After you have entered your data, Minitab tells you what mathematical function can be applied to each of your data points to bring your data closer to a normal distribution |
Why Use? 
| Many tools require that data be normally distributed to produce accurate results. If the data set is not normal, this may reduce significantly the confidence in the results obtained |
When Use? 
| If your data is not normally distributed, you may encounter problems in Calculating Z values with continuous data. You could calculate an inaccurate representation of your process capability. In constructing control charts.... Your process may appear more or less in control than it really is. In Hypothesis testing... As your data becomes less normal, the results of your tests may not be valid |
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