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For all students and data analysts, before choosing the statistical test to analyze your data, you need absolutely to check the following questions:
For all students and data analysts, before choosing the statistical test to analyze your data, you need absolutely to check the following questions:
1) Was the database filtrated or cleaned from aberrant values?
1) Was the database filtrated or cleaned from aberrant values?
2) Which types your variables (quantitative, qualitative) are?
2) Which types your variables (quantitative, qualitative) are?
3) Which types of samples (dependent, independent) do you have?
3) Which types of samples (dependent, independent) do you have?
4) What are the study hypotheses or null hypotheses according to the database and objectives?
4) What are the study hypotheses or null hypotheses according to the database and objectives?
5) How your quantitative variables are distributed?
5) How your quantitative variables are distributed?
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